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Physics speed and density, Exams of Physics

Physics

Physics speed and density worksheet past paper questions

Typology: Exams

2022/2023

Uploaded on 03/14/2023

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1. A ruler is used to measure the length of an object.
What is the length of the object?
A.
3.0cm
B.
4.0cm
C.
5.0cm
D.
6.5cm
2. The diagram shows an enlarged drawing of the
end of a meter rule. It is being used to measure the
length of a small feather.
What is the length of the feather?
A.
19 mm
B.
29 mm
C.
19 cm
D.
29 cm
3. The diagram shows a plastic rod alongside a ruler.
What is the length of the rod?
A.
2.5 cm
B.
3.5 cm
C.
7.0 cm
D.
9.0 cm
4. A student measures the length of a rod XY by
holding it next to a metre rule.
The student writes down the length as 94.8 cm.
Which statement is correct?
A.
B.
C.
D.
5. The diagram shows part of a ruler. The ruler is
used to find the length of a nail.
What is the length of the nail?
A.
B.
C.
D.
Key Concept 1: Density
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pfd
pfe
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pf16
pf17
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  1. A ruler is used to measure the length of an object.

What is the length of the object?

A. 3.0cm B. 4 .0cm C. 5 .0cm D. 6. 5 cm

  1. The diagram shows an enlarged drawing of the end of a meter rule. It is being used to measure the length of a small feather. What is the length of the feather? A. 19 mm B. 29 mm C. 19 cm D. 29 cm

  2. The diagram shows a plastic rod alongside a ruler. What is the length of the rod? A. 2.5 cm B. 3.5 cm C. 7.0 cm D. 9.0 cm 4. A student measures the length of a rod XY by holding it next to a metre rule. The student writes down the length as 94.8 cm. Which statement is correct? A. The value is correct B. The value is incorrect because it should be 95.2 cm C. The value is incorrect because it should be in millimetres D. The value is incorrect because the student should subtract the reading for end Y from the reading for end X 5. The diagram shows part of a ruler. The ruler is used to find the length of a nail. What is the length of the nail? A. 2.2cm B. 2. 7 cm C. 3 .2 cm D. 3. 7 cm

Key Concept 1: Density

  1. The diagram shows four identical spheres placed between two wooden blocks on a ruler. What is the diameter of one sphere? A. 1.0 cm B. 2.0 cm C. 3.0 cm D. 4.0 cm

  2. The diagram shows two identical spheres placed beside a ruler. What is the radius of one sphere? A. 4.0 mm B. 5.0 mm C. 8.0 mm D. 10 mm

  3. The diagram shows the height of a stack of identical coins. What is the thickness of one coin? A. 0.20 mm B. 2.0 mm C. 0.24 cm D. 2.0 cm 9. The diagram shows a rectangular metal sheet close to two rulers. What is the area of the metal sheet? A. 700 cm^2 B. 875 cm^2 C. 900 cm^2 D. 1125 cm^2 10. Diagram 1 shows a solid, rectangular-sided block. Diagram 2 shows the same block from the front and from the side. Meter rules have been shown close to the edges of the block. What is the volume of the block? A. 120 cm^3 B. 168 cm^3 C. 264 cm^3 D. 1155 cm^3

  1. A student is asked to find the volume of a small irregularly-shaped piece of rock. He has the following apparatus available Which apparatus must the student use to find the volume of the small piece of rock? A. Balance and rule B. Rule only C. Balance and measuring cylinder D. Measuring cylinder only
  2. A scientist needs to determine the volume of a small, irregularly shaped rock sample. Only a rule and a measuring cylinder, partially filled with water, are available. To determine the volume, which apparatus should the scientist use? A. both the measuring cylinder and the rule B. neither the measuring cylinder nor the rule C. the measuring cylinder only D. the rule only
    1. A student measures the volume of a small irregularly shaped stone. Which apparatus must be used? A. A measuring cylinder containing water and a ruler only B. A measuring cylinder containing water only C. An empty measuring cylinder and a ruler only D. A ruler only
    2. A student wishes to measure accurately the volume of approximately 40 cm^3 of water. She has two measuring cylinders, a larger one that can hold 100 cm^3 , and a smaller one that can hold 50 cm^3. The water forms a meniscus where it touches the glass. Which cylinder should the student use and which water level should she use to ensure an accurate result? cylinder water level A. larger one bottom of meniscus B. larger one top of meniscus C. smaller one bottom of meniscus D. smaller one top of meniscus
    3. A student uses a ruler to find the volume of water in a tank. She measures the lengths EF and FG. What other length does she need to measure? A. FJ B. FK C. HI D. IJ
  1. The diagram shows a measuring cylinder used to measure the volume of a small stone. What is the volume of the stone? A. 8 cm^3 B. 9 cm^3 C. 14 cm^3 D. 26 cm^3
  2. Diagram 1 shows a measuring cylinder containing some water. Diagram 2 shows the same measuring cylinder after a piece of rock has been slowly submerged in the water. What is the volume of the piece of rock? A. 15 𝑐𝑚^3 B. 20 𝑐𝑚^3 C. 23 𝑐𝑚^3 D. 35 𝑐𝑚^3
  3. A student uses a measuring cylinder to measure the volume of a quantity of water. Which action would make her result less accurate? A. making sure her eye is level with the water surface B. making sure the cylinder is vertical C. reading the bottom of the meniscus D. using the largest measuring cylinder possible
  4. Diagram 1 shows a measuring cylinder containing water. Five identical steel balls are now lowered into the measuring cylinder. Diagram 2 shows the new water level in the cylinder. What is the volume of each steel ball? A. 6 cm^3 B. 14 cm^3 C. 30 cm^3 D. 70 cm^3
  5. A student uses a measuring cylinder to measure the volume of some water. The diagram shows part of the measuring cylinder. The top and bottom of the meniscus are labelled. What is the volume of the water? A. 47.0 cm^3 B. 47.5 cm^3 C. 49.0 cm^3 D. 49.5 cm^3

  1. The diagrams show the readings on a measuring cylinder before and after a small metal cube is added. How many more identical cubes can be added to the cylinder, without causing the water to overflow? Do not include the cube already in the cylinder. A. 1 B. 2 C. 3 D. 4

  2. The diagrams show an empty rectangular box, and the same box filled with liquid. The box has a mass of 60g when empty. When filled with liquid, the total mass of the box and the liquid is 300g. The density of the liquid is 1.2 g/cm^3. What is the volume of the liquid in the box? A. 50 cm^3 B. 200 cm^3 C. 250 cm^3 D. 300 cm^3

    1. A student is trying to find the density of water and of a large, regularly shaped concrete block. Which apparatus is needed to find the density of both the water and the concrete block? A. balance, clock, measuring cylinder B. balance, clock, ruler C. balance, measuring cylinder, ruler D. clock, measuring cylinder, ruler
    2. A person measures the length, width, height and mass of a metal block with rectangular sides. Which of these measurements must be used in order to calculate the density of the metal? A. mass only B. height and mass only C. length, width and height only D. length, width, height and mass
    3. A student is told to measure the density of a liquid and also of a large cube of metal. Which pieces of equipment are sufficient to be able to take the measurements needed? A. balance, measuring cylinder and ruler B. balance and thermometer C. measuring cylinder and ruler D. measuring cylinder, ruler and thermometer
    4. Two cylinders are made of the same metal. Both cylinders have the same cross-sectional area but one is longer than the other. Which quantity is the same for both cylinders? A. density B. mass C. resistance D. volume

  1. A student wishes to determine the density of the solid block shown. Which quantities must be known? A. the area of the shaded face and the volume of the block B. the area of the shaded face and the weight of the block C. the mass of the block and the height of the block D. the mass of the block and the volume of the block

  2. A stone has a volume of 0.50 cm^3. and a mass of 2.0g. What is the density of the stone? A. 0.25 g/ cm^3 B. 1.5 g/ cm^3 C. 2.5 g/ cm^3 D. 4.0 g/ cm^3

  3. A liquid has a volume of 0.040 m^3 and a mass of 30000 g. What is the density of the liquid? A. 0.075 kg/cm^3 B. 7.5 kg/cm^3 C. 750 kg/cm^3 D. 7500 kg/cm^3

  4. A liquid has a density of 0.80 g/cm^3. Which could be the volume and mass of this liquid? Volume/cm^3 Mass/g A 2.0 16 B 8.0 10 C 10 8. D 16 2.

    1. The table gives the volumes and masses of four objects. Which object has the greatest density? mass / g (^) volume / cm^3 A. 5.4 2. B. 13 3. C. 15 6. D. 18 5.
    2. The diagram shows some liquid in a measuring cylinder. The mass of the liquid is 16 g. What is the density of the liquid? A. 0.80 g/cm^3 B. 1.25 g/cm^3 C. 36 g/cm^3 D. 320 g/cm^3
    3. A measuring cylinder contains 40 cm^3 of water. A stone of mass 94 g is lowered into the water so that it is fully submerged as shown. What is the density of the stone? A. 1.1 g / cm^3 B. 1.2 g / cm^3 C. 2.1 g / cm^3 D. 2.6 g / cm^3

5 1. A small bottle has a mass of 20 g when empty. The volume of the bottle is 10 cm^3. When full of liquid, the total mass is 150 g. What is the density of the liquid? A. 0.50 g / cm^3 B. 2.0 g / cm^3 C. 13 g / cm^3 D. 15 g / cm^3

  1. The mass of a piece of metal is 1200 g. A measuring cylinder contains 150 cm^3 of water. The piece of metal is put into the measuring cylinder. The water level rises to 250 cm^3 and covers the metal. What is the density of the metal? A. 3 g/ cm^3 B. 4.8 g/ cm^3 C. 8 .0 g/ cm^3 D. 12 .0 g/ cm^3
  2. A measuring cylinder has a mass of 120 g when empty. When it contains 50 cm^3 of a liquid, the total mass of the measuring cylinder and the liquid is 160 g. What is the density of the liquid? A.

𝑔/𝑐𝑚^3

B.

𝑔/𝑐𝑚^3

C.

𝑔/𝑐𝑚^3

D.

𝑔/𝑐𝑚^3

  1. A liquid has a volume of 100 cm^3 and a mass of 85g. The density of water is 1.0 g/cm^3. How does the density of the liquid compare with the density of water? A. Its density is higher than that of water B. Its density is lower than that of water C. Its density is the same as that of water D. It is impossible to say with only this data

  2. The mass of a measuring cylinder is 190 g. 400 cm^3 of liquid is put into the measuring cylinder. The total mass of the measuring cylinder and the liquid is 560g. Four solid objects are lowered in turn into the liquid. The densities of the objects are shown. 1 0.40 g/cm^3 2 0.90 g/cm^3 3 1.2 g/cm^3 4 2.7 g/cm^3 Which objects will float in the liquid? A. 1 only B. 1 and 2 only C. 1, 2 and 3 D. 3 and 4 only

  3. Four hollow glass spheres P, Q, R and S each have a mass of 72 g. Their volumes are given in the table. Which spheres sink in a liquid of density 0.9 g / cm^3? A. P, Q and R B. Q, R and S C. R and S only D. S only

  4. Two objects P and Q are placed in a beaker containing a liquid. Object P floats in the liquid and object Q sinks. Which row for the densities of object P, object Q and the liquid is possible? Density of object P (g/cm^3 ) Density of object Q (g/cm^3 ) Density of liquid (g/cm^3 ) A 1.2 0.6 0. B 1.2 1.4 1. C 11.3 8.9 13. D 11.3 19.3 13.

  1. A rectangular gymnasium is 50 m long, 25 m wide and 8.0 m high. The density of air is 1.2 kg/m^3 What is the best estimate of the mass of air in the gymnasium? A. 0.00012 kg B. 100 kg C. 8300 kg D. 12 000kg

  2. The density of air is 1.2 kg / m^3. A room has dimensions 5.0 m × 4.0 m × 3.0 m. What is the mass of the air in the room? A. 0.02 kg B. 0.10 kg C. 50 kg D. 72 kg

  3. Water has a density of 1000 kg /m3.^ A rectangular swimming pool has an average depth of 1.6 m. The length of the pool is 25 m. The width of the pool is 10 m. What is the mass of the water in the swimming pool? A. 2.5 kg B. 400 kg C. 400 000 kg D. 800 000 kg

  4. The diagram shows a cuboid block made from a metal of density 2.5 g/cm^3. What is the mass of the block? A. 8.0 g B. 16 g C. 50 g D. 100 g

  5. The diagram shows a rectangular block of density 2 g/ cm^3. What is the mass of the block? A. 2 g B. 6 g C. 14 g D. 24 g

  6. The diagram shows the dimensions of a rectangular block of metal of mass m. Which expression is used to calculate the density of the metal? A. 𝑚 × 𝑝 × 𝑞 B. 𝑚 × 𝑝 × 𝑞 × 𝑟 C.

(𝑝 × 𝑞)

D.

(𝑝 × 𝑞 × 𝑟)

  1. The tank shown has the dimensions 5.0 m x 4.0 m x 4.0 m. It is completely filled with water of density 1000 kg /m^3. What is the mass of water in the tank? A. 12.5 kg B. 62.5 kg C. 16 000 kg D. 80 000 kg
  1. The diagrams show the dimensions and masses of four regular solid objects. The objects are made from different metals. Which metal has the greatest density? A. A B. B C. C D. D
  2. The diagram shows four blocks of different metals. Each block has a mass of 12 g. Which metal has the largest density? A. A B. B C. C D. D
    1. A measuring cylinder contains 30 cm^3 of a liquid. Some more of the liquid is added until the liquid level reaches the 50 cm^3 mark. The reading on the balance increases by 30 g. What is the density of the liquid? A. 0.60 g/cm^3 B. 0.67 g/cm^3 C. 1.5 g/cm^3 D. 1.7 g/cm^3
    2. The masses of a measuring cylinder before and after pouring some liquid into it are shown in the diagram. What is the density of the liquid? A. (100/120) g/cm^3 B. (100/140) g/cm^3 C. (180/120) g/cm^3 D. (180/140) g/cm^3
  1. A student uses a measuring cylinder and a balance to find the density of oil. The diagram shows the arrangement used. Which calculation gives the density of the oil? A.

B.

C.

D.

  1. The diagrams show an empty container, and the same container filled with liquid. The empty container has a mass of 120 g. When filled with the liquid, the total mass of the container and the liquid is 600 g. The volume of liquid in the container is 600 𝑐𝑚^3 .What is the density of the liquid? A. 0.02 g/cm^3 B. 0.80 g/cm^3 C. 1.00 g/cm^3 D. 1.20 g/cm^3
    1. A measuring cylinder containing liquid is placed on a top-pan balance. The apparatus is left overnight and some of the liquid evaporates. The diagrams show the readings. What is the density of the liquid? A. (^0). 875 𝑔/𝑐𝑚^3 B. 1. 14 𝑔/𝑐𝑚^3 C. 1. 40 𝑔/𝑐𝑚^3 D. 1. 42 𝑔/𝑐𝑚^3
    2. Diagram 1 shows an empty measuring cylinder on a balance. Diagram 2 shows the same measuring cylinder on the balance, but it now contains a liquid. What is the density of the liquid? A. 0.2 g/ cm^3 B. 0.5 g/ cm^3 C. 2.0 g/ cm^3 D. 5.0 g/ cm^3

Free response:

  1. The length of a rectangular sheet of plastic is measured using a short ruler, as shown in the figure below (not full size) a. From the ruler in the figure, find the length, in cm, of the sheet. b. The sheet of plastic has a thickness of 0.50 cm and a width that is half its length. Calculate the volume of the sheet of plastic. c. The plastic has a density of 1.2 g/cm3. i. Calculate the mass of the sheet. ii. Which laboratory instrument could be used to check the mass of the sheet?
  2. Five identical steel balls are measured with a rule graduated in cm, as shown in Fig. 1.1. a. Use the figure to find the diameter of one ball. b. What instrument would be used to measure the mass of a ball?

a. Figs. 1.1 and 1.2 show the dimensions of a rectangular block being measured using a ruler. They are not shown full size. Use the scales shown to find the length and the width of the block, giving your answers in cm. length of block ........ ......... cm width of block ...................... cm b. When the block was made, it was cut from a piece of metal 2.0 cm thick. Calculate the volume of the block. c. Another block has a volume of 20 cm^3. Fig. 1.3 shows the reading when the block is placed on a balance. Find the density of this block.

  1. A student uses a rule to measure a thin piece of wire as shown in the figure below. The student records the length of the wire as 12.8 cm. a. State two errors in the student’s measurement of the length of wire. b. The student is asked to measure the thickness of the wire using the same ruler. The student does this by bending a short length of the wire and measuring distance x as shown below. i. Use the ruler in Fig. 1.2 to determine the distance x. ii. Calculate the average thickness of the wire, in mm. Give your answer correct to two significant figures.
  2. A student measures a book. He measures the length of the book, as shown in the figure below. a. The student records his measurement. length of book = 19.9 cm. His measurement is not accurate. Describe two ways that the student can improve the accuracy of his measurement. b. The book contains 200 thin sheets of paper. The student wants to find the average (mean) thickness of a sheet of paper in the book. Describe how he can determine such a small distance using only a ruler.
  1. A student has a pile of A4 paper for his computer printer. Figure shows the dimensions of the pile of paper. a. The pile contains 500 sheets of paper. Calculate the average thickness of one sheet of paper. b. Show that the pile of paper has a volume of 3000 𝑐𝑚^3. Use the information shown in the figure. c. The student measures the total mass of the paper in the pile. State the name of a device used to measure mass. d. The mass of the paper in the pile is 2400g. Calculate the density of the paper.
  2. Figure below shows a coil of wire. a. A student measures the length of the coil using a ruler. His measurement is 3.8cm. There are 20 turns of wire in the coil. The student uses his measurement to calculate the average thickness of the wire. i. Show that the average thickness of the wire is about 0.2cm. ii. The student’s measurement of 3.8 cm is inaccurate. Suggest one reason why the measurement is inaccurate.