Vocabulary
A push or a pull
What is force
A diver on top of a diving board is an example of ______________________ energy.
What is potential energy
Two students who are similar in size walk up the same set of stairs. They are doing _________________ amount of work.
What is the same!
The two factors of power are work and ________________.
What is time.
knife
What is wedge
A car rolling down a hill is an example of _____________________ energy.
What is kinetic energy
Work = ____________________ x ___________________
What is FORCE x DISTANCE
Power is measured in _____________________.
What is watts.
Give an example of a pulley.
What is a flag pole, crane, blinds for a window...
The units of force
What is newtons
A person skiing down a slope is ______________________ potential energy, and ____________________ kinetic energy.
What is losing potential energy and gaining kinetic energy
Holding a stack of books - work or not?
What is not doing work
The _________________ amount of time it takes to do work, the more power is produced.
What is shorter
The type of simple machine that cuts something
What is a wedge.
Name 6 types of simple machines
lever, wedge, pulley, wheel and axle, inclined plane, screw
The unit of energy
What is joules
Pushing against a wall is an example of doing work. True/False
What is false - not moving over a distance!
Two cars that weigh the same race up the hill. Car 1 gets there twice as fast as Car 2. Which car had more power?
What is car 1
Name both simple machines in a stapler.
What is a lever (handle) and wedge (staple).
How much work is performed in a certain amount of time
What is power
The definition of energy.
What is the ability to do work
A monster truck and a golf cart climb up the same hill. Which does more work
What is the monster truck - because it weighs more!
Power = ___________________/ ___________________
What is WORK/ TIME
How are inclined planes and screws similar?