Moments and work revision

In this lesson we come back to key content such as balancing moments, changing units, rounding to 3 significant figures and using the work done and power equations.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.For an object with a larger spring constant, the force required to stretch it would be

1/9

Q2.This means more work is done so the energy stored in the spring is

2/9

Q3.For an object with a smaller spring constant the force required to stretch or compress it is

3/9

Q4.This means less work is done so the energy stored in the spring is

4/9

Q5.In a bow and arrow, when we let go of the string, the energy is transferred from the elastic potential store to the

5/9

Q6.Use Hooke's Law: Force = Spring constant x extension to calculate the force required to stretch a 5 N/m spring to 2 m

6/9

Q7.Use Hooke's Law: Force = Spring constant x extension to calculate the force required to stretch a 0.5 N/m spring to 4 m

7/9

Q8.Use Hooke's Law: Force = Spring constant x extension to calculate the extension produced if a force of 10 N is exerted on a spring with a constant of 5 N/m

8/9

Q9.Use Hooke's Law: Force = Spring constant x extension to calculate the spring constant if an extension of 4 m is produced with a force of 32 N.

9/9

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.For an object with a larger spring constant, the force required to stretch it would be

1/9

Q2.This means more work is done so the energy stored in the spring is

2/9

Q3.For an object with a smaller spring constant the force required to stretch or compress it is

3/9

Q4.This means less work is done so the energy stored in the spring is

4/9

Q5.In a bow and arrow, when we let go of the string, the energy is transferred from the elastic potential store to the

5/9

Q6.Use Hooke's Law: Force = Spring constant x extension to calculate the force required to stretch a 5 N/m spring to 2 m

6/9

Q7.Use Hooke's Law: Force = Spring constant x extension to calculate the force required to stretch a 0.5 N/m spring to 4 m

7/9

Q8.Use Hooke's Law: Force = Spring constant x extension to calculate the extension produced if a force of 10 N is exerted on a spring with a constant of 5 N/m

8/9

Q9.Use Hooke's Law: Force = Spring constant x extension to calculate the spring constant if an extension of 4 m is produced with a force of 32 N.

9/9

Video

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Worksheet

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Moments and Work Revision

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.What is the moment of a force?

1/11

Q2.For an object to be balanced, the clockwise moment must equal the .......

2/11

Q3.How can we make the moment bigger (choose 2)

Select two (2) boxes

3/11

Q4.Work done means

4/11

Q5.Power is the .......

5/11

Q6.What does rate mean?

6/11

Q7.What is 400 cm in m?

7/11

Q8.What is 0.3 km in m?

8/11

Q9.What is the unit of power?

9/11

Q10.What is the unit of energy or work done?

10/11

Q11.What is the power if 30 J of energy is transferred in 10 seconds?

11/11

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Moments and Work Revision

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.What is the moment of a force?

1/11

Q2.For an object to be balanced, the clockwise moment must equal the .......

2/11

Q3.How can we make the moment bigger (choose 2)

Select two (2) boxes

3/11

Q4.Work done means

4/11

Q5.Power is the .......

5/11

Q6.What does rate mean?

6/11

Q7.What is 400 cm in m?

7/11

Q8.What is 0.3 km in m?

8/11

Q9.What is the unit of power?

9/11

Q10.What is the unit of energy or work done?

10/11

Q11.What is the power if 30 J of energy is transferred in 10 seconds?

11/11

Lesson summary: Moments and work revision

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