Work
Power is the rate of doing ______.
What is work?
Energy stored due to an object's height.
What is gravitational potential energy
The ratio of output force to input force is called this.
What is mechanical advantage
This states that energy cannot be created or destroyed, it can only be transferred or change forms.
What is the law of conservation of energy
The unit used to measure power.
What is a watt
Definition: Energy of motion.
What is kinetic energy
All of the following are simple machines except this: pulley, lever, wheel & axle, or car.
What is car
A group of objects, effects, and variables that are related.
What is a system
The formula for work
Work = ______ x ______.
What are force and distance
At the top of a hill, the truck has the most of this type of energy.
What is potential energy
A human arm is an example of this simple machine.
What is a lever
Some energy from burning gasoline is converted into this form that we can see.
What is light energy
Energy increases when an object is lifted higher.
What is potential energy
Two students push identical boxes up a ramp. Student A takes 10 seconds; Student B takes 5 seconds. Who uses more power?
Who is Student B
A parked car at the top of a parking garage has energy stored because of this factor.
What is its position/height?
A pendulum is swinging back and forth. As the pendulum moves from its lowest point to its highest point, its energy transfers from Kinetic Energy to this type of energy.
What is Potential Energy
When one form of energy decreases, another form does this.
What is increases
Friction usually transforms motion energy into this type of energy.
What is thermal energy
If two people do the same amount of work, the one with more power does it in ______ time.
What is less time
An object moves down a ramp without friction. The object loses potential energy and gains this type of energy.
What is Kinetic Energy.
The pivot point on a lever is called this.
What is a fulcrum
The point where a moving object has the greatest kinetic energy.
What is the lowest point (fastest point)