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1 The diagram shows a large tank containing water. The tank leaks. Drops of water fall from the tank.
The drops hit the ground at a regular rate.

(a) A student measures the time interval between two drops of water hitting the ground. She uses
a stopwatch and repeats the procedure three times. The diagram shows each stopwatch
reading.

time = ............................ s time = ............................ s time = ............................ s

On the line below each stopwatch, state the time readings shown, in seconds.
[1]

(b) Calculate the average time interval between two drops of water hitting the ground.

average time = .............................................. s [2]

[Total: 3]

2 A long spring is fixed at one end, as shown in the diagram. The spring is moved towards and away
from the fixed end, repeatedly. The compressions and rarefactions on the spring at a particular
time can be seen.
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(a) State the type of wave in the spring.

........................................................................................................................................... [1]

(b) State one other example of this type of wave.

........................................................................................................................................... [1]

(c) Use the scale in the diagram to determine the wavelength of the wave in the spring.

wavelength = .............................................. cm [1]

[Total: 3]

3 A student is studying elephants.The diagram shows an elephant.

(a) The student measures the elephant and records the values, as shown in the table.

Complete the table by adding a suitable unit for each measurement. Choose the units from
those shown in the box.

2 2 2
m kg cm mm g m cm mg mm

measurements value unit

mass of elephant 4000

height of elephant 3.0

average area of an elephant’s foot 0.125

[2]

(b) Using information from the table in (a):

(i) calculate the weight of the elephant

weight = .............................................. N [3]

(ii) calculate the pressure the elephant exerts on the ground when it is standing on four
feet. Include a unit.

pressure = .............................................. [4]

[Total: 9]
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4 A model train is travelling along part of a model railway track.

The graph is a speed-time graph for this model train as it travels along part of the track.

Determine the total distance travelled by the train on this part of the track.

distance = ........................... m [4]

[Total: 4]

5 This question is about measuring the speed of sound in air.

A student stands in front of a large wall. She hits a drum and hears an echo. The diagram shows
the position of the student and the wall.
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(a) (i) State the name of a piece of equipment for measuring the distance from the student to
the wall.

................................................................................................................................ [1]

(ii) Explain how sound forms an echo.

................................................................................................................................

................................................................................................................................ [1]

(b) The student hits her drum repeatedly once per second. She walks away from the wall and
listens for the echo. When the student is 170 m from the wall she hears the echo from one
beat of the drum at the same time as the next beat of the drum.

Use this information to determine the speed of sound. State the unit.

speed = ........................... [4]

[Total: 6]
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6 A model train moves along a track passing through two model stations. Students analyse the motion
of the train. They start a digital timer as the train starts to move. They record the time that it enters
Station A and the time it enters Station B.

The diagram shows the time on entering Station A and the time on entering Station B.

Calculate the time taken from the train entering Station A to the train entering Station B.
State your answer in seconds.

time taken = ........................... s [1]

[Total: 1]
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7 A student watches a car race around a track. He uses a stopwatch to measure the time for the car
to make one lap of the track.

The student forgets to reset the stopwatch at the start of the race. The diagram shows the time on
the stopwatch at the start and the time after going around the track once.

time at start time after going around the track once

Calculate the time the car takes to go around the track once, in seconds.

time = ........................... s [2]

[Total: 2]
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8 A student has a pile of A4 paper for his computer printer.

The diagram shows the dimensions of the pile of paper.

The pile contains 500 sheets of paper.

Calculate the average thickness of one sheet of paper.

average thickness = .............................................. cm [1]

[Total: 1]