lesson 8 — 1.4 gravity

• Natuurkunde / Scheikunde
• Middelbare school
• havo
• Leerjaar 1

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.

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

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

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

This lesson

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

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
  

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
  

The homework

1.4 Gravity

What do you know about gravity?

What is gravity?

What is gravity?

Gravity

A force between all objects

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

Mass

How much matter something is made of

Weight

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

Working independently

Homework:

workbook 1.4 — Exercise 1, 2 and 3

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
  

Homework

workbook 1.4 — Exercise 1, 2 and 3