Vocabulary
a push or a pull
force?
An ax is an example of this simple machine...
wedge
This simple machine gives cars, trucks, bikes, etc. their ability to travel...
wheel and axle
A car stopped at a stop light is an example of a(n) __________ force
Balanced
a measure of the distance an object travels in a certain amount of time
speed?
A wheelchair ramp is what type of simple machine...
inclined plane
This simple machine includes an inclined plane wrapped around a post.
screw
For a satellite to stay in orbit around Earth, it has to be moving forward very fast all the time. This force will make it fall to Earth if it goes too slowly.
gravity
describes the location of an object
position
the point on which a lever rests; the fixed point
fulcrum?
A light bulb includes which simple machine...
screw
Simple machines change the amount of _____________ needed to do work.
force
Two groups of students are playing tug of war. One team has 6 students on the left and the other team has 2 students on the right. Which way will the rope be pullled?
To the left
when two objects rub together; causes heat and slows the speed of an object
friction
A _________ force can cause an object to stop or start moving.
Unbalanced
A doorknob includes this simple machine.
wheel and axle
This simple machine changes the direction of force needed to do a task without changing the size of the force needed.
a pulley
An object is being pulled to the right. To make the object move to the left, you would have to apply a force to the left that is ________________ the force to the right.
greater than
The fixed point on a level where the movement starts is called the _________.
fulcrum
_________ is the force that holds objects to the ground.
Gravity
If you wanted to lift a bucket of water out of a well, you would use this simple machine.
pulley
This simple machine helps a boat slice through the water.
wedge
A baseball is thrown up in the air. What will happen to is?
It will fall back to the ground.
A machine with few or no moving parts.
simple machine