Vocabulary
A push or pull
A force
Pushing a stroller
contact
A ramp used to move objects upward
Inclined Plane
You push a toy car harder. What happens to its speed?
It goes faster
Name one simple machine that helps lift heavy objects
Pulley / lever / inclined plane (any correct)
The ability to do work or make things move
Energy
A magnet pulling paperclips
non contact
Scissors used to cut paper
Lever
You stop pushing a swing. What happens?
It slows down and stops.
Why do wheels make moving objects easier?
They roll instead of being lifted
A force that happens when objects are touching
Contact force
Wind pushing a kite
Contact
A doorknob that turns
Wheel and axle
You push a ball in a new direction. What happens?
It changes direction.
Which simple machine helps move objects upward?
Inclined plane or pulley
A force that happens without touching
Noncontact force
A ball falling to the ground
Non contact
Window blinds pulled with a string
Pulley
You squeeze a sponge. What happens?
It changes shape.
How does a lever help you do work?
It helps lift with less force
Tools that help make work easier
Simple machines
A balloon sticking to hair
Non contact
A knife used to cut food
Wedge
Why is pushing a box up a ramp easier than lifting it?
It needs less force / the work is spread out.
Do simple machines remove work? Explain
No, they only make work easier