SCIENCE WORK

YEAR 7 – MR MILL

EXPECTATIONS –

Complete all work. However you only need to email your answers to the last

question (on the last two pages of this pack) back to me. You can complete the answers to this question on a word document.

My Email: rmill@nusa.org.uk Deadline – Monday 23rd March All work will be marked.

RESOURCES –

BBC BITESIZE – read through the revision and complete the quiz

https://www.bbc.co.uk/bitesize/guides/zttfyrd/revision/1

YOUTUBE – watch the video and make notes

https://www.youtube.com/watch?v=9kMNtZvYmqQ

UNIT- FORCES

TOPIC – TYPES OF FORCE

Find the forcesWrite the answers to the clues in the spaces.

Clues Answers

a A force which pulls you down.

____________________

b This force helps to hold things to fridge doors.

____________________

c This type of force needs to touch something to affect it.

____________________

d This force rubs things away.

____________________

e This force helps a ship float.

____________________

f A form of electricity which can attract things.

____________________

W F R I C T I O N

S R A O P D Y Q L

A F C H R T Y U M

S T E O I U F S J

I S I V N P I T P

D V A R E T I O M

B R N I E H A I E

G I K N O R U C L

R C G D I U E M T

S A I B O S K F U

M F S T A T I C Z

See how many types of forces you can find above.

Forces are everywhere1 Which forces are pushes and which ones are pulls? Write the correct words in the

spaces.

_________________ _________________ _________________ _________________

2 Look at the pictures below. Write the names of the forces next to the arrows.

A

_____________

B

_____________

C

_____________

D

_____________

E

_____________

F

_____________

3 Which pictures show non-contact forces? ___________________

4 Complete these sentences.

a A ___________________ is needed to start an object moving.

b A force can change the ___________________ , ___________________ and

___________________ of an object.

c Nothing starts to move without a ___________________ being involved.

d Three forces which can act from a distance are ___________________ ,

___________________ and ___________________ ___________________ forces.

Force diagrams

Draw labelled force arrows on the following diagrams.

Hint 1: look at your table of forcesHint 2: forces always come in pairs

1. A slinky moving down the stairs. 2. A hot air balloon.

3. A stationary football. 4. A balloon attached to a wall by static.

5. A car travelling at a steady speed. 6. A box being pushed.

ONLY EMAIL THE ANSWER TO THIS QUESTION TO ME.

Q1.The diagram below shows Jo hanging on a trapeze (swing) in a circus.

 

(a)     (i)      Which arrow, A, B, C or D, shows the direction of Jo’s weight?

..............1 mark

(ii)     Which arrow, A, B, C or D, shows the direction of the force of the rope on

Jo?

..............1 mark

(b)     Sara swings towards Jo.

 

          Sara lets go of her trapeze and Jo catches her.

 

(i)      What happens to the downward force on the rope of Jo’s trapeze?Tick the correct box.

           increases              decreases          stays the same     there is no force

                                                                   1 mark

(ii)     Explain your answer.

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

1 mark

(c)     Jo lets go of the trapeze and both Sara and Jo fall into a safety net below them.

          What happens to the downward force on the rope when Jo lets go?

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

1 markmaximum 5 marks