# Gravity

In this lesson we learn what gravity is, the difference between mass and weight, and how we can investigate mass and weight on earth.

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 objects to be balanced, opposing forces must have the same...

1/8

Q2.If forces on an object are balanced, what will happen to its speed?

2/8

Q3.If forces on an object are balanced, what will happen to its direction?

3/8

Q4.A person rides a bike at a constant speed in a straight line. What can we say about the forces?

4/8

Q5.A person rides a bike at constant speed and turns left. What can we say about the forces?

5/8

Q6.A person accelerates as they ride a bike in a straight line. What can we say about the forces?

6/8

Q7.What is another word for resultant force?

7/8

Q8.If forces are balanced, what is the resultant force?

8/8

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 objects to be balanced, opposing forces must have the same...

1/8

Q2.If forces on an object are balanced, what will happen to its speed?

2/8

Q3.If forces on an object are balanced, what will happen to its direction?

3/8

Q4.A person rides a bike at a constant speed in a straight line. What can we say about the forces?

4/8

Q5.A person rides a bike at constant speed and turns left. What can we say about the forces?

5/8

Q6.A person accelerates as they ride a bike in a straight line. What can we say about the forces?

6/8

Q7.What is another word for resultant force?

7/8

Q8.If forces are balanced, what is the resultant force?

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.

Quiz:

# Gravity

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

Q1.What is mass measured in?

1/9

Q2.What is weight measured in?

2/9

Q3.Gravity is a force that acts on any object with .....

3/9

Q4.What piece of equipment do I use to measure weight?

4/9

Q5.Which if the following is a non-contact force?

5/9

Q6.If an object is stationary the forces are ..........

6/9

Q7.If an object is moving at a constant speed the forces are ..........

7/9

Q8.If an object is accelerating the forces are ..........

8/9

Q9.If an object is changing direction the forces are ..........

9/9

Quiz:

# Gravity

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

Q1.What is mass measured in?

1/9

Q2.What is weight measured in?

2/9

Q3.Gravity is a force that acts on any object with .....

3/9

Q4.What piece of equipment do I use to measure weight?

4/9

Q5.Which if the following is a non-contact force?

5/9

Q6.If an object is stationary the forces are ..........

6/9

Q7.If an object is moving at a constant speed the forces are ..........

7/9

Q8.If an object is accelerating the forces are ..........

8/9

Q9.If an object is changing direction the forces are ..........

9/9

# Lesson summary: Gravity

## Time to move!

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

For 5 mins...

Move around:
Walk

On the spot:
Dance