Energy Test

What is mechanical energy made up of?

• Kinetic and Potential energy

• Elastic potential and Gravitational potential energy

• Thermal and Friciton energy

• Kinetic and chemical energy

A car heading down a hill has a potential energy of 8679 J while also having a kinetic energy of 10566 J. What is the mechanical energy of the car?

• 19245 J

• 1887 J

• 91702314 J

• 0.8214 J

What does mechanical energy transform into when an object is slowing down due to friction?

• Thermal

• Electrical

• Chemical

• Light

During a storm, wind pushes a 2.5 kg satellite dish off of a roof. During one moment of its fall, the satellite dish is 4 m above the ground and moving at a velocity of 5 m/s. What is the potential energy of the satellite dish at this moment?

During a storm, wind pushes a 2.5 kg satellite dish off of a roof. During one moment of its fall, the satellite dish is 4 m above the ground and moving at a velocity of 5 m/s. What is the kinetic energy of the satellite dish at this moment?

During a storm, wind pushes a 2.5 kg satellite dish off of a roof. During one moment of its fall, the satellite dish is 4 m above the ground and moving at a velocity of 5 m/s. What is the mechanical energy of the satellite dish at this moment?

A 10 kg person is running forward at 1.5 m/s. What is this person's kinetic energy?

• 11.25 J

• 73.5J

• 150 J

• 15 J

Which of the following objects has kinetic energy?

• A book sitting on a shelf

• A ball rolling down a hill

• A trashcan sitting by the road

• A set of wind chimes hanging on a porch

What has a greater affect on the kinetic energy of an object?

• Mass

• Velocity

• Time

• Gravity

Which is not a type of potential energy?

• Gravitational

• Elastic

• Chemical

• Positional