# Simple machines

In this lesson we introduce simple machines as objects that change the direction or size of a force. We also practice analysing simple trends in data.

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.What is the definition of power?

1/8

Q2.What does rate mean?

2/8

Q3.What is the unit of Power?

3/8

Q4.Round 3.5426 to 3 significant figures

4/8

Q5.Round 6052 to 3 significant figures

5/8

Q6.What is the power when it takes 10 seconds to transfer 40 J of energy?

6/8

Q7.What is the work done when an object is moved 4 m by a force of 8 N?

7/8

Q8.What is 400 cm in m?

8/8

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.What is the definition of power?

1/8

Q2.What does rate mean?

2/8

Q3.What is the unit of Power?

3/8

Q4.Round 3.5426 to 3 significant figures

4/8

Q5.Round 6052 to 3 significant figures

5/8

Q6.What is the power when it takes 10 seconds to transfer 40 J of energy?

6/8

Q7.What is the work done when an object is moved 4 m by a force of 8 N?

7/8

Q8.What is 400 cm in m?

8/8

# 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.

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:

# Simple Machines

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

Q1.A simple machine is an object that changes... (choose 2)

Select two (2) boxes

1/8

Q2.Which of the following best describes a wedge?

2/8

Q3.Which of the following best describes a wheel and axle?

3/8

Q4.What is the effect of using an inclined plane to moved objects up to a certain hand?

4/8

Q5.What is 3.5432 to 3 significant figures?

5/8

Q6.What is the work done when 50 N is exerted to move 3 m ?

6/8

Q7.What is 30 cm in m?

7/8

Q8.What is 0.4 km in m?

8/8

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:

# Simple Machines

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

Q1.A simple machine is an object that changes... (choose 2)

Select two (2) boxes

1/8

Q2.Which of the following best describes a wedge?

2/8

Q3.Which of the following best describes a wheel and axle?

3/8

Q4.What is the effect of using an inclined plane to moved objects up to a certain hand?

4/8

Q5.What is 3.5432 to 3 significant figures?

5/8

Q6.What is the work done when 50 N is exerted to move 3 m ?

6/8

Q7.What is 30 cm in m?

7/8

Q8.What is 0.4 km in m?

8/8

# Lesson summary: Simple machines

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## Time to move!

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

For 5 mins...

Move around:
Walk

On the spot:
Chair yoga