The Basics
Simple Machine Definitions
Types of Simple Machines
Force and Motion
Force and Motion 2
100
True or False: Simple machines need electricity to work.
False
100
What is an inclined plane wrapped around a cylinder? It is used to hold things together.
screw
100
Which simple machine is a doorknob and example of?
wheel and axle
100
How does a pulley make work easier? A pulley changes the __________________ of a ________________.
A pulley changes the direction of the force.
100
What is the pulling force between two objects? This force is always pulling on us.
Gravity
200
2 or more simple machines working together are called a _________________ machine.
compound machine
200
Which simple machine is a stiff bar that moves around a fixed point called a fulcrum?
a lever
200
The point at which a lever moves or pivots around is called the _________________.
Fulcrum
200
All pushes and pulls are-
Forces
200
Forces cause objects to move, change speed and _________.
A. increase mass
B. stop moving
C. decrease mass
B. Stop Moving
300
True or False: Simple machines are run by muscle energy.
True
300
A simple machine with a flat surface and one end higher than the other. It is used to move things from a lower to higher point.
an inclined plane
300
Which simple machines has a fulcrum?
lever
300
What is the force that occurs when one object rubs against another?
Friction
300
There are equal and opposite forces acting on both sides of the ball, so it will not move. Therefore, the net force is zero.
400
Simple machines make ____________ easier.
work
400
What is a simple machine made of a wheel with a rod attached to the center?
wheel and axle
400
What type of simple machine is a slide?
Inclined plane
400
A shovel has two simple machines. The long stiff handle is a lever and the part of the shovel that you dig into the ground with is a _____________.
Wedge
400
A child drew a model of the force pushing a marble. Which arrow should the student draw to show the force of friction acting on the ball while the marble is still moving forward.
A - The shorter opposing arrow would show some friction acting on the marble, but still allowing the marble to move.
500
Is this a simple or compound machine?
compound machine
500
Name the simple machine that uses a rope and a wheel?
pulley
500
Which simple machine is used to cut and separate things?
a wedge
500
What simple machine is the switch on the light switch?
Lever
500
Hedge clippers are a compound machine used to trim bushes. What 2 simple machines do you see on the hedge clippers?
levers and wedges