Energy/Work/Force
What is the name of a push or a pull?
A Force
A simple machine includes electricity and motors.
False
A simple machine can't have electricity or motors.
Inclined plane.
What simple machine is an axe?
A wedge
Give 2 examples of inclined planes.
staircase
ramp
roof
What is it called when a force/effort makes something move?
A wheel and axle helps move loads from place to place.
True
What is the difference between a screw and a wedge?
A screw holds materials together while a wedge splits materials apart.
What simple machine is a window shade?
A pulley
Give 2 examples of a wedge.
fork
axe
knife blade
What is friction?
A force caused by two objects rubbing together
A pulley has a wheel and axle in it.
True
What does a screw do?
What simple machine is a water bottle cap?
A screw
Give 2 examples of a screw.
Light bulb
Water bottle cap
Screw
What is force measured in?
Newtons
A wedge holds materials together.
False
A wedge splits material apart.
Define a wedge.
An inclined plane with a pointed edge that pushes material apart.
What simple machine is a see saw?
A lever
Give 2 examples of a pulley.
Flag pole
Elevator
Window shade
What is a load?
If you use a lot of force to push something but it doesn't move, work has been done.
False
It needs to move for work to be done.
Define an inclined plane.
A slanted or flat object that lifts or lowers a load.
What simple machine is a staircase?
An inclined plane
Give 1 example of a lever and 1 example of a wheel and axle.
Lever: see saw, tweezers, stapler, scissors
Wheel and Axle: skateboard, bike, steering wheel, globe, clock