What is energy?
The ability to cause change
The basic unit of energy.
Joules
Which type of energy increases when a spring is compressed?
Elastic potential energy
A soda can is sitting on a building platform 20 m high. It has a mass of 0.5 kg. Calculate its energy.
The can has what form of energy?
Potential
At which points would the ball possess both kinetic and potential energy?
B and E
What has a greater effect on an object's kinetic energy, its mass or its velocity?
Velocity
The tendency of moving objects to continue moving in a straight line or a stationary object to remain in place unless acted on by an outside force.
Inertia
A soda can is sitting on a building platform 20 m high. It has a mass of 0.5 kg. Calculate its energy.
Energy= ?
98 Joules
Based on the information in the graph, we can predict that the kinetic energy of the object at 2 m/s would be…
20j
At which point in the roller coaster’s journey along the track does it have the greatest kinetic energy?
W
At which position on the diagram above would an apple have the greatest potential energy?
Position 1
What is the kinetic energy of a 3.5 kg pipe that is rolling at 5 m/s? Calculate its energy.
43.75 joules
A book sitting on a table has potential energy because of the gravitational pull of the Earth. Which of the following would increase the potential energy of the book?
Lifting the book higher
Opening the book
Dropping the book on the floor
Sliding the book across the table
1
What factors determine the gravitational potential energy stored between an object and Earth?
Height and Mass
Which point above does the ball possess the second greatest amount of potential energy?
G
You throw a dodgeball with a mass of 0.5 kg. The ball leaves your hand with a speed of 20 m/s.
The ball has what form of energy? ______________________
kinetic
A boulder rolling down a hill is a great example of what form of energy.
Kinetic energy
The force that opposes motion between two surfaces?
Friction
What type of energy is found in a battery?
Chemical potential energy
In order for an object moving at 10 m/s to have a kinetic energy of 1200 Joules, the object must have a mass in the range of…
20-30