Share SIMPLE MACHINES
Save to Folder
What is a force?
A pull or push
Show us how you can apply a force
Pulling or pushing an object
What is work?
When we apply force (a pull or push) to MOVE an object
Give an example of work
E.g.: Pushing a stroller around the mall
What is a simple machine?
An object that has few or no moving parts and can make work easier
Which simple machine would I use instead of stairs to move a wheelchair up into the mall?
Ramp (Inclined plane)
Which simple machine allows us to LIFT objects?
Lever
Give 5 examples of levers.
Fork/See-saw/Hammer/Arms
What does a lever balance on?
Fulcrum
Which simple machine is found in a bike?
Wheel-and-axle
Which simple machine is found in a ceiling fan?
Wheel-and-axle
If builders are high up but need material from the ground floor, which simple machine could they use?
Pulley
What is a pulley made of?
Wheel-and-axle and rope
At the supermarket, why do we choose to push a trolley than carry a cart?
A trolley has a wheel-and-axle so we put in less effort to carry our shopping
On a lever, when we want to lift a load up, what do we do to the other side?
Push down
Which simple machine does an elevator use?
Pulley
