Lesson 9 — Gravity

1.4 Gravity
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Slide 1: Diapositive
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1.4 Gravity

Slide 1 - Diapositive

This lesson
  • Video gravity
  • Rearranging the formula for weight
  • Worksheet gravity

Slide 2 - Diapositive

Goals

  • Name the formula for weight

  • Be able to rearrange the formula for weight 

  • Apply the formula for weight in exercises

Slide 3 - Diapositive

Slide 4 - Vidéo

The formula for weight

Slide 5 - Diapositive

weight=massgravitationalfieldstrength
w=mg
• w: weight (N)
• m: mass (kg)
• g: gravitational field strength (N/kg)

Slide 6 - Diapositive


Worksheet gravity

Slide 7 - Diapositive

Calculation procedure
  • Given
  • Asked
  • Formula
  • Calculate
  • Check

Slide 8 - Diapositive


Worksheet gravity

Slide 9 - Diapositive

w=mg
6=32

Slide 10 - Diapositive

w=mg
6=32
Exercise
Rearrange the formula to use it to calculate:

a) mass

b) gravitational field strength

Slide 11 - Diapositive

Exercise
The weight of a boulder on Neptune is 2,960 Newtons. The boulder has a mass of 269 kilograms. What is the gravitational field strength on Neptune?

Slide 12 - Diapositive

Homework
The gravity worksheet

Slide 13 - Diapositive

Goals

  • Name the formula for weight

  • Be able to rearrange the formula for weight 

  • Apply the formula for weight in exercises

Slide 14 - Diapositive