# Pushes and Pulls

In this worksheet, students will have to relate their understanding of forces to playing with a selection of toys.

Key stage:  KS 2

Curriculum topic:   Forces and Magnets

Curriculum subtopic:   Forces: Contact and Magnetic

Difficulty level:

### QUESTION 1 of 10

You already know a lot about forces. Don't believe me? Well, how do you open a door? What happens if you kick a football? How do you cut an apple in half? You see, you know all those - and they all involve forces!

So in this worksheet all you have to do is to use your understanding of forces to help you find out what's going on as a group of children test a selection of toys to see what happens when they push them or pull them.

Should be fun!

Some of the children are pushing toy cars across the carpet.

What will happen if they push them across a polished floor instead?

the cars will get stuck

the cars will go faster

the cars will go slower

One of their dads joins in and any car he pushes always goes faster than everyone else's.

Why do you think this is?

he is cheating

he is pushing harder

the car is bigger

How might the dad make his car go slower?

he could push less hard

he could close his eyes

he could have the last turn

Some of the other children are pulling toy boats in a pool.

Which of these boat shapes do you think will move FASTEST through the water?

round boat

rectangular boat

triangle boat

Jess and Carly are throwing soft balls to each other.

How can they make the ball go faster?

throw it harder

throw it quickly

bounce it

How do you think Jess and Carly could get the ball to change direction?

throw it harder

throw it gently

hit it with a bat

Connor is trying to get a golf ball into a hole by using a golf club.

He needs to hit the ball carefully or he will miss the hole. What should he do?

hit the ball hard

hit the ball gently

whack the ball quickly

• Question 1

Some of the children are pushing toy cars across the carpet.

What will happen if they push them across a polished floor instead?

the cars will go faster
EDDIE SAYS
On a polished floor you don't have to push as hard to get the car to go as fast - that's because it's more slippery. That means that if the children push just as hard as before (with the same force) the cars will go faster.
• Question 2

One of their dads joins in and any car he pushes always goes faster than everyone else's.

Why do you think this is?

he is pushing harder
EDDIE SAYS
He's a dad - he's bigger! That means he's going to be pushing with a bigger force, even if he tries not to! That means that the car has a big force on it and so it goes faster.
• Question 3

How might the dad make his car go slower?

he could push less hard
EDDIE SAYS
If it's about forces it's about pushing (in this case). So if the dad can push with LESS FORCE then the car will have a smaller force and it will go slower than before.
• Question 4

Some of the other children are pulling toy boats in a pool.

Which of these boat shapes do you think will move FASTEST through the water?

triangle boat
EDDIE SAYS
The boats need a pull on the string (force) to make them go through the water. How far they go depends on their shape and how easily they can move through the water. The triangle shape slips through the water easiest so that should go fastest (depending on how much force it was pulled with!).
• Question 5

Jess and Carly are throwing soft balls to each other.

How can they make the ball go faster?

throw it harder
EDDIE SAYS
To make the ball go faster the girls need to use MORE FORCE. That means they need to throw it harder. They give it more force from their arms and then the ball carries this force in its greater speed.
• Question 6

How do you think Jess and Carly could get the ball to change direction?

hit it with a bat
EDDIE SAYS
Throwing it keeps the ball in one direction - the one they threw it in. But if it's hit with a bat, the ball goes in a different direction - the force of the bat makes the ball move at a certain speed in a certain direction.
• Question 7

Connor is trying to get a golf ball into a hole by using a golf club.

He needs to hit the ball carefully or he will miss the hole. What should he do?

hit the ball gently
EDDIE SAYS
If Connor uses a lot of force (hitting the ball hard) it will move quickly and probably miss the hole. He should hit it gently, with a small force, so it moves slowly and tumbles into the hole (if he's lucky - and skilful!).
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