newtons first law
newtons 1st law is known as
inertia
What happens if the cart is full of heavy stuff?
It’s harder to push
Newton’s 3rd Law says
Every action has an equal and opposite reaction
What is Newton’s 1st Law also called
Law of inertia
If you slide a book across a table, it slows down because of what force?
friction
true or false
Newton’s 2nd Law has nothing to do with mass.
False! More mass = harder to accelerate
When you jump off a skateboard, the skateboard…
Moves backward
true or false
A heavy object is harder to move than a light object if you push with the same force.
true
true or false
If a skateboarder is rolling and no one pushes or stops them, they’ll roll forever.
false - friction and air resistance are forces that eventually stop them.
Newton’s 2nd Law formula is __________ = mass × acceleration.
force
true or false
Pushing on a wall makes the wall push back on you with the same amount of force.
true
You jump off a skateboard. What happens to the skateboard?
It moves backward (Newton’s 3rd Law)
true or false
If you’re riding in a car and the car stops fast, you go flying forward.
true! that's inertia
A kid pushes a toy car gently and it barely moves. Then they push really hard and it zooms! Which law is this?
Newton’s 2nd Law!
Newton’s 3rd Law is all about “For every __________, there is an equal and opposite __________.”
Action; reaction
According to the 1st Law, an object at rest will stay at rest unless…
A force acts on it
A soccer ball won’t roll until someone kicks it. This shows...
inertia
If you push the same object with the same force, the object with more __________ will move slower
mass
You throw a ball against a wall. It bounces back at you. Which law is this?
Newton’s 3rd Law
If you push a shopping cart and it’s empty, it moves…
Super easy and fast!