# lesson 8 — 1.4 gravity

Lessonplan
Notes
topic: 1.4 gravity
2 lessons.

Learning goals
• Describe in your own words what gravity is.
• Explain what is meant by gravitational field strength
• Describe the difference between mass and weight.
• Calculate weight, mass and gravitational field strength in different scenarios.

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Slide 1: Tekstslide
Natuurkunde / ScheikundeMiddelbare schoolhavoLeerjaar 1

In deze les zitten 24 slides, met tekstslides en 2 videos.

## Onderdelen in deze les

Lessonplan
Notes
topic: 1.4 gravity
2 lessons.

Learning goals
• Describe in your own words what gravity is.
• Explain what is meant by gravitational field strength
• Describe the difference between mass and weight.
• Calculate weight, mass and gravitational field strength in different scenarios.

#### Slide 2 -Tekstslide

Gravitational field strength earth = 10 N/kg
Gravitational field strength mars = 3.7 N/kg
10 kg
20 kg
50 kg
Weight (N)
On earth
Weight (N)
On mars
Weight mass x gravitational field strength

#### Slide 3 -Tekstslide

Gravitational field strength mars = 10 N/kg
Gravitational field strength mars = 3.7 N/kg
10 kg
20 kg
50 kg
Weight (N)
On earth
100
200
500
Weight (N)
On mars
Weight mass x gravitational field strength

#### Slide 4 -Tekstslide

Gravitational field strength mars = 10 N/kg
Gravitational field strength mars = 3.7 N/kg
10 kg
20 kg
50 kg
Weight (N)
On earth
100
200
500
Weight (N)
On mars
37
74
185
Weight mass x gravitational field strength

1.4 Gravity

#### Slide 6 -Tekstslide

This lesson
• Discussing the homework
•  What is gravity?
•  The difference between mass and weight
• Working independently

#### Slide 7 -Tekstslide

Learning goals
• Explain the cause of gravity

• Describe the difference between mass and weight.

• Explain gravitational field strength

• Calculate weight, mass and gravitational field strength

#### Slide 8 -Tekstslide

Learning goals
• Explain the cause of gravity

• Describe the difference between mass and weight.

• Explain gravitational field strength

• Calculate weight, mass and gravitational field strength

#### Slide 9 -Tekstslide

The homework

#### Slide 10 -Tekstslide

1.4 Gravity

#### Slide 12 -Video

What do you know about gravity?

#### Slide 13 -Tekstslide

What is gravity?

#### Slide 15 -Video

What is gravity?

#### Slide 16 -Tekstslide

Gravity
A force between all objects

#### Slide 17 -Tekstslide

Gravity
A force between all objects

The strength of the force of gravity depends on:
•  the mass of the two objects
• the distance between them

Mass

and

weight

#### Slide 20 -Tekstslide

Mass
How much matter something is made of

Weight
The force of gravity on a specific object in a specific gravitational field

#### Slide 21 -Tekstslide

Working independently
Homework:
workbook 1.4 — Exercise 1, 2 and 3

#### Slide 22 -Tekstslide

Learning goals
• Explain the cause of gravity

• Describe the difference between mass and weight.

• Explain gravitational field strength

• Calculate weight, mass and gravitational field strength

#### Slide 23 -Tekstslide

Homework
workbook 1.4 — Exercise 1, 2 and 3