1. Classify each of the following sentences as either examples of kinetic energy or potential energy. a) A car is driving on a level road. Answer: Kinetic energy.
b) An elastic band is stretched to twice its normal length.
Answer: Potential energy.
c) A book is on the top shelf of a bookcase.
Answer: Potential energy.
d) A lightning bolt produces thunder that travels at 1250 km / h.
Answer: Kinetic energy.
2. While doing work to lift an object, what form of energy does the object gain? Answer: While doing work to lift an object, it gains gravitational potential energy.
3. When frictional forces do work on an object, what form of energy is always produced? Answer: When frictional forces do work on an object, thermal energy is always produced.
1. Classify each of the following sentences as either examples of kinetic energy or potential energy.
a) A car is driving on a level road.
Answer:
Kinetic energy.
b) An elastic band is stretched to twice its normal length.
Answer:Potential energy.
c) A book is on the top shelf of a bookcase.
Answer:
Potential energy.
d) A lightning bolt produces thunder that travels at 1250 km / h.
Answer:
Kinetic energy.
2. While doing work to lift an object, what form of energy does the object gain?
Answer:
While doing work to lift an object, it gains gravitational potential energy.
3. When frictional forces do work on an object, what form of energy is always produced?
Answer:
When frictional forces do work on an object, thermal energy is always produced.
Content:
~ Home Page
~ Work
~ Energy
~ Forms of Energy
~ Practice Questions - About Energy
~ Answers - About Energy
~ Units of Measurements
~ Calculations
~ Practice Questions - With Calculations
~ Answers - With Calculations
~ Bibliography