1st Law
This is the nickname for a thing that is lazy and doesn't want to change what it's doing. (Hint: It starts with 'I').
Inertia.
True or False: It is much easier to push a small skateboard than a massive rugby scrum machine.
True.
According to this law, every action has an equal and opposite ______?
Reaction.
The simplest definition of a force is a ______ or a ______.
Push or a pull.
You pull a tablecloth quickly, and the cups stay on the table. Which law is this?
1st Law.
If a rugby ball is sitting on the grass and no one touches it, what will it do?
Stay still.
If you want a netball to fly faster and further, you need to use more of this. (Hint: Think of a push or a pull).
Force.
If you push down on a trampoline, which way does the trampoline push you?
Up.
This invisible force pulls you down to the ground and stops you from floating into space.
Gravity.
A rocket blasts fire down into the ground to push itself up into space. Which law is this?
3rd Law.
If you throw a tennis ball in deep, empty space, what will it do forever?
Keep moving in a straight line.
Why is it harder to kick a heavy bowling ball than a light football?
Because the bowling ball has more mass (or weight).
When you let go of a balloon filled with air, the air rushes out the bottom. Which way does the balloon fly?
Up.
This is the annoying force that slows you down when you slide across carpet or grass.
Friction.
An empty supermarket trolley is way easier to push than a trolley full of groceries. Which law is this?
2nd Law.
When a car suddenly brakes, your body jerks forward. Why does your body want to keep moving?
Because of the inertia (your body wants to keep doing what it was already doing).
Fill in the blanks for the 2nd Law: More Force = More ______?
Acceleration.
If you high-five your friend and your hand hurts, it's because their hand hit yours back with the exact same amount of what?
Force.
This is the scientific unit we use to measure force, named after Sir Isaac himself.
Newtons.
You are paddling a kayak. To go forward, you have to push the water backward with your paddle. Which law is this?
3rd Law.