Show:
Force
Motion
Work
Energy
Simple Machines
100
The location of an object
What is position.
100
The pulling force between two objects.
What is gravity.
100
This makes changes in motion possible.
What is energy.
100
This happens when a force changes an object's motion.
What is work is done.
100
There are this many types of simple machines.
What is six.
200
The two main types of energy.
What are kinetic energy and potential energy.
200
The time it takes for something to move from one place to another.
What is speed.
200
Two or more simple machines working together.
What is a compound machine.
200
Lifting a bowling ball is an example of this.
What is work.
200
All moving objects have this.
What is kinetic energy.
300
A doorknob is an example of this kind of simple machine.
What is a wheel and axle.
300
Most cutting tools are simple machines called this.
What is wedges.
300
A seesaw is an example of this kind of simple machine.
What is a lever.
300
Our window blinds have this simple machine in them.
What is a pulley.
300
A handicap ramp is this kind of simple machine.
What is an inclined plane.
400
Using brakes on a bicycle is an example of ____________.
What is friction.
400
A pile of wood has _______________ energy.
What is potential energy.
400
Two simple machines found inside scissors.
What are levers and wedges.
400
This will decrease friction on a bicycle.
What is oil.
400
The fixed point at which a lever moves.
What is the fulcrum.
500
Two things that must be known to measure speed.
What are how far an object has traveled (distance) and how long it took to go that distance (time).
500
Name the six simple machines.
What are lever, screw, inclined plane, pulley, wedge, and wheel and axle.
500
A bus traveled 35 miles in one hour. What was the speed of the bus?
What is 35 miles per hour.
500
If you lost an iron key in the sand, what could you use to help you find the key?
What is a magnet.
500
Use terms potential energy and kinetic energy to describe what happens when a car uses gasoline.
What is "Gasoline has potential energy stored in it. As the car moves, its gasoline burns and its stored energy is changed into kinetic energy."