WGU D165 Integrated Physical Sciences Test with Accurate
Answers
1. Which type of energy is involved with an automobile's rotating wheel?
Chemical potential
Elastic potential
Thermal
Kinetic
correct
Answer
Correct:
A rotating wheel is moving and thus has energy of motion.
2. As an engine is lowered into a car, what happens to its potential energy?
It remains the same.
It increases.
It decreases.
correct
Answer
Correct:
Potential energy depends on an object’s mass and height.
3. What happens to kinetic energy if speed increases?
Kinetic energy decreases.
There is no change.
Kinetic energy increases.
correct
Answer
Correct:
, Kinetic energy increases when velocity increases.
4. After an engine is mounted in an automobile, a radiator is added. The purpose of
the radiator is to cool the engine. To do that, which type of energy does the radiator
remove from the water that circulates through the hot engine block?
Chemical energy
Gravitational potential energy
Thermal energy
correct
Answer
Correct:
Thermal energy, or heat, is being transferred.
5. When energy is converted from one form to another, what happens to the total
amount of energy?
It increases.
It decreases.
It will change depending on the circumstances.
It remains the same.
correct
Answer
Correct:
Energy cannot be created or destroyed; the total must remain constant in any
process.
6. Many types of energy conversions occur in the assembly and operation of an
automobile. Which type of energy conversion is present in the change of chemical
potential energy to thermal energy?
Combustion of fuel
Dropping a wrench
Lowering a vehicle on its spring suspension
Answers
1. Which type of energy is involved with an automobile's rotating wheel?
Chemical potential
Elastic potential
Thermal
Kinetic
correct
Answer
Correct:
A rotating wheel is moving and thus has energy of motion.
2. As an engine is lowered into a car, what happens to its potential energy?
It remains the same.
It increases.
It decreases.
correct
Answer
Correct:
Potential energy depends on an object’s mass and height.
3. What happens to kinetic energy if speed increases?
Kinetic energy decreases.
There is no change.
Kinetic energy increases.
correct
Answer
Correct:
, Kinetic energy increases when velocity increases.
4. After an engine is mounted in an automobile, a radiator is added. The purpose of
the radiator is to cool the engine. To do that, which type of energy does the radiator
remove from the water that circulates through the hot engine block?
Chemical energy
Gravitational potential energy
Thermal energy
correct
Answer
Correct:
Thermal energy, or heat, is being transferred.
5. When energy is converted from one form to another, what happens to the total
amount of energy?
It increases.
It decreases.
It will change depending on the circumstances.
It remains the same.
correct
Answer
Correct:
Energy cannot be created or destroyed; the total must remain constant in any
process.
6. Many types of energy conversions occur in the assembly and operation of an
automobile. Which type of energy conversion is present in the change of chemical
potential energy to thermal energy?
Combustion of fuel
Dropping a wrench
Lowering a vehicle on its spring suspension
