Moments and levers

In this lesson we look at moments and levers, and how the rotational effect of a force helps us in many everyday situations.

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.What is the equation that links extension, force and spring constant?

1/7

Q2.What store of energy is increased when an elastic object is stretched or compressed?

2/7

Q3.Whose law refers to the relationship between force and extension of an elastic object?

3/7

Q4.What does elastically deform mean?

4/7

Q5.What name is given to the point where a spring no longer returns to its original shape when stretched?

5/7

Q6.What does Hooke's law state?

6/7

Q7.Calculate the force required to extend a spring by 0.4m when the spring has a spring constant of 5 N/m.

7/7

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.What is the equation that links extension, force and spring constant?

1/7

Q2.What store of energy is increased when an elastic object is stretched or compressed?

2/7

Q3.Whose law refers to the relationship between force and extension of an elastic object?

3/7

Q4.What does elastically deform mean?

4/7

Q5.What name is given to the point where a spring no longer returns to its original shape when stretched?

5/7

Q6.What does Hooke's law state?

6/7

Q7.Calculate the force required to extend a spring by 0.4m when the spring has a spring constant of 5 N/m.

7/7

Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

Quiz:

Moments and Levers

This quiz will test your knowledge on the 'Moments and gears' lesson of the KS4 topic 'Forces and motion'

Q1.If I move a force further away from a pivot the moment will ................

1/6

Q2.If I move a force closer to a pivot the moment will ................

2/6

Q3.What are the units of a moment?

3/6

Q4.Recall the correct equation to calculate a moment

4/6

Q5.Choose all 3 things that a lever consists of

Select three (3) boxes

5/6

Q6.Levers are described as what?

6/6

Quiz:

Moments and Levers

This quiz will test your knowledge on the 'Moments and gears' lesson of the KS4 topic 'Forces and motion'

Q1.If I move a force further away from a pivot the moment will ................

1/6

Q2.If I move a force closer to a pivot the moment will ................

2/6

Q3.What are the units of a moment?

3/6

Q4.Recall the correct equation to calculate a moment

4/6

Q5.Choose all 3 things that a lever consists of

Select three (3) boxes

5/6

Q6.Levers are described as what?

6/6

Lesson summary: Moments and levers

Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Jog

On the spot:
Dance