REVISION WORKSHEET, YEAR 7 PHYSICS

Year Group: 7 Subject: Physics

Section: Total Marks: 25 marks

Candidate Name:

General Instructions:
• Use black ink or ballpoint pen.
• Answer the questions in the spaces provided.
• Read each question carefully before you start to answer it.
• Try to answer every question.
• Use of correction fluid is not allowed.
• Check your answers if you have time at the end.
• This script contains 13 pages.

Section A: Multiple Choice Questions: ( 9 Marks)

Questions 1 to 9 are multiple choice question each carrying one mark:
1) Friction is a force that acts in an ___________ direction of movement.
a) similar
b) opposite
c) parallel
d) west

2) It is difficult to walk on an oily floor because

a) Floor gets spoiled

b) There is more resistance

c) Force of friction is high

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d) Force of friction is very less

3) What is the function of the tiny hair cells in the cochlea?

a) Gather sound waves and directs it to the eardrum.

b) Help us keep our balance.

c) Detects vibrations and create electrical signals

4) The table shows the hearing range of different animals.

Which mammal has the largest range of hearing?

a) Elephant
b) Human
c) Dog
d) Bat

5) The height of the wave from its resting point is called

its _______________________
a) wavelength
b) Amplitude
c) Velocity
d) Frequency

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6) A force generated by object that is touching it.
a) Contact
b) Friction
c) Net
d) Acceleration

7) Susan puts her ear on the wooden table as John makes a sound. She hears the musical instrument. It sounds
louder.

Complete the sentence below to explain how the sound reaches Susan's ear.

The sound travels through…Tick one option.

a) air only.

b) wood and air only.

c) wood, air and plastic.

d) wood only.

8) What happens when you increase the amplitude of a sound?

a) It makes the sound travel faster
b) It makes the sound louder
c) It increases the wavelength of the sound
d) It increases the frequency of the sound

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9) what is the function of the auditory nerve?
a. art of the the inner ear responsible for helping the body keep its balance
b. carries messages from the ear to the brain for processing
c. narrow region leading from the outside of the ear to the eardrum

Section B

1) Jill’s dad watches her doing the bungee jump. He is standing a long way from the bridge. Jill shouts
‘bungee’ at the same time as she jumps off the bridge. Jill’s dad sees her jump before he hears her
Shout (2 Marks)

(i) Tom is near Jill when she shouts. Her dad is far away. Complete the sentence to describe
how the shout will sound to Tom compared with Jill’s dad. Use one word from the box

(ii) What part of Tom’s ear vibrates when he hears Jill shout?

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2) The diagrams below show the patterns produced on an oscilloscope by three different sound waves.
There are three different Sound waves. (3 Marks)

(i) Which two waves have the same loudness? Write the letters.

_____________ and ___________________

(ii) Which two waves have the same pitch? Write the letters.

____________and _________________.

(iii) Shuli is listening to a sound that produces the pattern below. Describe how the sound that Shuli
hears changes between X and Y.

________________________________________________________________________
________________________________________________________________________
________________________________________________________________________

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3. Julia is listening to Kumi playing his guitar (3 Marks)

(a) He plucks a string.

What happens to the guitar string when it makes a sound?

__________________________________________________________________________

(b) Julia walks away from Kumi and leaves the room.

What happens to the loudness of the sound Julia hears as she goes further away from
Kumi?

______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

(c) Julia shuts the door. She can still hear Kumi playing his guitar in the next room.

One material the sound travels through is air.

Name ONE other material the sound must travel through for Julia to hear it.

_________________________________________________________________

64) The area of the head of a drawing pin is 0.5 m2. (2 marks)

A weight of 10 Newtons rests on the head of the drawing pin.

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What is the pressure on the head of the drawing pin?
Give the units.

Space for calculation

Answer_____________

5) Fill in the missing word in the sentence: (1 Mark)

a) The highest point on the wave is called________________. whereas the lowest is known as
_______________

6) The table below shows the maximum time a person can listen to music at different sound levels
without damage to the ear. ( 2 Marks)

The diagram below shows part of the human ear

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a) What happens to the ear drum as a sound gets louder?
_____________________________________________________________________________________
_____________________________________________________________________________________

b) I am shaped like a snail and contain fluids and sound-detecting cells with hairs on them. What am I?
Tick one option: -
a) Cochlea
b) Pinna
c) Ossicles
d) Eardrum

7) Astronauts in Space communicate with each other using a radio system or by touching

their helmets . (2 marks)

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Explain why the astronauts in space cannot communicate directly with each other as they do on
earth?

_______________________________________________________________

_______________________________________________________________

_______________________________________________________________

_______________________________________________________________

8) A rocket exploded making a loud sound and a bright flash. Peter, Sabrina and Jan were standing
at different distances from the rocket. (1 Mark)

A) When the rocket stopped burning it fell to the ground. What force caused it to fall to the ground?

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

End of the Revision Paper

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