Force and Motion. Potential vs. Kinetic. Potential Kinetic * GPE * KE * stored energy * energy of motion * not moving * moving * the higher the object * the faster an object the more PE the more KE * GPE= mgh * KE=mv2 G= 9.8 m/s2.
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the more PE the more KE
G= 9.8 m/s2
A. Potential energy changing into heat energy
B. Potential energy changing into kinetic energy
C. Kinetic energy changing into heat energy
D. Kinetic energy changing into potential energy
What form of energy does a car’s engine convert into mechanical energy?
Which type of energy is changed by plants into chemical energy?
A flat horizontal or sloped ramp
A wheel that turns on an axle
Car or gears
A wheel that is fixed to a pulley
2 incline planes that are together
Spiral stairs or meat grinder
An incline plane wrapped around a shaft
How can an inclined plane make work easier?
Which simple machine would be the most efficient for lifting an object 30m off the ground?
F = ma
(Force = mass x acceleration)
John wants to build a racetrack that will allow his toy cars to travel fast when force is applied. Which material should be use?
A magnet is placed near a pile of steel paper clips. Which will most likely occur?
The motion of an object can be represented in a line graph. The data table below charts the motion of an object in 20 seconds.
Construct a line graph on page 28 (blank page) that shows the motion of the object. Be sure to label both axes.
Then, use the graph to describe the motion of the object between 0 and 10 seconds.
Distance vs. Time
Which describes their motion?
Steven threw four balls into the air and recorded their heights. The chart below shows the maximum height for each ball.
The chart shows the distance traveled by an object over 100 seconds.
What happened to the motion of the object between t=50s and t=70s?
Which graph represents a moving object with a constant speed throughout its entire travel time?