Work, Energy and Power

Question 1 of 18

1

Select from the dropdown list to complete the text.

Stationary objects require ( power, energy, heat ) to move, change shape or warm up.

Explanation

Question 2 of 18

1

What is the principle of conservation of energy?

Select one of the following:

Energy can be transformed into other forms of energy.
Energy must be conserved.
Energy cannot be created or destroyed.

Explanation

Question 3 of 18

1

Work Done on an object is equal to the Force multiplied by the Distance moved.

Select one of the following:

True
False

Explanation

Question 4 of 18

1

Fill the blank space to complete the text.

When work is done on an object, is transferred to it.

Explanation

Question 5 of 18

1

Work Done has a unit of Joules (J), which is equal to which of the following base units?

Select one or more of the following:

kgm^2s^-2
Nm
kgms^-2
kgm^-3

Explanation

Question 6 of 18

1

Select from the dropdown lists to complete the text.

The ( greater, lesser ) the force, or the ( shorter, further ) the distance, the greater the work done on an object.

Explanation

Question 7 of 18

1

No work is done on an object when Force and Distance/Displacement are...

Select one of the following:

of equal size.
at an angle of 30 degrees.
at right angles to each other.

Explanation

Question 8 of 18

1

The area underneath a Force-Distance graph represents the acceleration of the object.

Select one of the following:

True
False

Explanation

Question 9 of 18

1

Which of the following apply for a string being stretched?

Select one or more of the following:

The distance moved by the spring is the extension.
Energy is lost during stretching.
Are under a Force-Distance graph for a stretched spring is equal to the energy stored in the spring.
Energy stored in a spring = Force x Distance.
Energy stored in a spring = 1/2 x Force x Extension/Change in length.
A stretched spring obeys Newton's 3rd Law.
A stretched spring obeys Hooke's Law, which states that Force is directly proportional to the extension of the spring.

Explanation

Question 10 of 18

1

Kinetic Energy = 1/2 x mass x velocity^2

Select one of the following:

True
False

Explanation

Question 11 of 18

1

The slower an object moves, the more kinetic energy it has.

Select one of the following:

True
False

Explanation

Question 12 of 18

1

Acceleration due to gravity is 10ms^-2.

Select one of the following:

True
False

Explanation

Question 13 of 18

1

Which of the following is true?

Select one of the following:

potential energy = mass x acceleration due to gravity
mgh = 1/2mv^2
Work done on an object decreases the gravitational potential energy of the object.

Explanation

Question 14 of 18

1

When considering a pendulum bob - is it true that the bob passes its equilibrium position with maximum speed, and then slows down when it reaches its maximum height. Meaning that the kinetic energy is equal to the loss of potential energy from its maximum height.

Select one of the following:

True
False

Explanation

Question 15 of 18

1

Select from the dropdown list to complete the text.

Power is the ( rate of transfer of energy, time per Joule, time work takes to be done ).

Explanation

Question 16 of 18

1

	Created by Elliephant Brown over 8 years ago

AS - Level Physics (Mechanics and Materials) Quiz on Work, Energy and Power, created by Elliephant Brown on 02/06/2016.

Work, Energy and Power

Work, Energy and Power

Question 1 of 18

Select from the dropdown list to complete the text.

Stationary objects require power energy heat( power, energy, heat ) to move, change shape or warm up.

Explanation

Question 2 of 18

What is the principle of conservation of energy?

Select one of the following:

Explanation

Question 3 of 18

Work Done on an object is equal to the Force multiplied by the Distance moved.

Select one of the following:

Explanation

Question 4 of 18

Fill the blank space to complete the text.

When work is done on an object, is transferred to it.

Explanation

Question 5 of 18

Work Done has a unit of Joules (J), which is equal to which of the following base units?

Select one or more of the following:

Explanation

Question 6 of 18

Select from the dropdown lists to complete the text.

The greater lesser( greater, lesser ) the force, or the shorter further( shorter, further ) the distance, the greater the work done on an object.

Explanation

Question 7 of 18

No work is done on an object when Force and Distance/Displacement are...

Select one of the following:

Explanation

Question 8 of 18

The area underneath a Force-Distance graph represents the acceleration of the object.

Select one of the following:

Explanation

Question 9 of 18

Which of the following apply for a string being stretched?

Select one or more of the following:

Explanation

Question 10 of 18

Kinetic Energy = 1/2 x mass x velocity^2

Select one of the following:

Explanation

Question 11 of 18

The slower an object moves, the more kinetic energy it has.

Select one of the following:

Explanation

Question 12 of 18

Acceleration due to gravity is 10ms^-2.

Select one of the following:

Explanation

Question 13 of 18

Which of the following is true?

Select one of the following:

Explanation

Question 14 of 18

When considering a pendulum bob - is it true that the bob passes its equilibrium position with maximum speed, and then slows down when it reaches its maximum height. Meaning that the kinetic energy is equal to the loss of potential energy from its maximum height.

Select one of the following:

Explanation

Question 15 of 18

Select from the dropdown list to complete the text.

Power is the rate of transfer of energy time per Joule time work takes to be done( rate of transfer of energy, time per Joule, time work takes to be done ).

Explanation

Question 16 of 18

Energy can be transferred from one object to another by the means of: - work done -heat transfer -electricity -sound waves -electromagnetic radiation

Select one of the following:

Explanation

Question 17 of 18

Which of the following apply for engine power:

Select one or more of the following:

Explanation

Question 18 of 18

Useful power output = Total power supplied/Useful power

Select one of the following:

Explanation

Stationary objects require ( power, energy, heat ) to move, change shape or warm up.

The ( greater, lesser ) the force, or the ( shorter, further ) the distance, the greater the work done on an object.

Power is the ( rate of transfer of energy, time per Joule, time work takes to be done ).

Energy can be transferred from one object to another by the means of:
- work done
-heat transfer
-electricity
-sound waves
-electromagnetic radiation