POST - Ch 15 Test

Energy is the...

• measurement of movement

• potential to move

• mass of an object

• ability to do work

Potential energy is energy that is...

• stored

• due to position

• due to shape

• all of the above

A bowling ball traveling at 2.0 m/s has 16J of KE. What is the mass of the bowling ball?

• 8 kg

• 16 kg

• 32 kg

• 64 kg

Calculate the PE of a car with a mass of 1200 kg at the top of a 42 m hill.

• 11760 J

• 50400 J

• 493920 J

• 246960 J

This type of energy is associated with the motion and position of objects.

• Mechanical

• Chemical

• Thermal

• Electrical

This energy is the total KE and PE of all the microscopic particles in an object.

• Mechanical

• Chemical

• Thermal

• Electrical

The energy of food is considered to be this type of energy.

• Mechanical

• Chemical

• Thermal

• Electrical

Striking a match releases energy in the form of...

• mechanical energy

• thermal energy

• chemical energy

• electrical energy

Which of the following is NOT true?

• KE is converted to heat because of friction.

• KE is conserved.

• KE is converted to PE.

• PE is converted to KE.

Which of the following is true for the diagram?

• The KE is highest at 70 cm

• The KE is highest between 69 cm and 49 cm

• The PE is highest at 50 cm

• The PE is highest between 69 cm and 49 cm