7Ka-b Forces and Springs

A force can change the shape of something.

• True

• False

Is spring a force?

• Yes

• No

A spring reaches its 'elastic limit' when a spring is compressed lightly.

• True

• False

Are springs elastic?

• Yes

• No

A forcemeter has a spring inside it.

• True

• False

We measure force in

• newons

• netons

• newrons

• newtons

An elastic band is similar to a spring.

• True

• False

What is the net force?

• 3 N

• 3 N, right

• 17 N, right

• 3 N, left

Who wins the tug of war with what net force?

• The person on the left with 20 N

• The person on the left with 10 N

• The people on the right with 20 N

• The people on the right with 10 N

What is the net force?

• 20 N 
• 0 N 
• 400 N 
• 40 N