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Do Now Heading: The Force of Gravity

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Presentation on theme: "Do Now Heading: The Force of Gravity"— Presentation transcript:

1 Do Now Heading: The Force of Gravity
Get assessment probe 34 and 38 from the front desk Take out your forces book Begin working on assessment probe 34 Do not work on probe 38

2 What direction does gravity act in?
Work on Assessment probe 38! Make sure to write at least 3 complete sentences and draw a picture in the blank space underneath

3 Gravitational Force Inverse Square Law
Today’s Vocabulary Gravitational Force Inverse Square Law

4 Gravitational Force

5 Practice Fg Questions A 45 kg man is standing on a ladder. What is his weight? A dog’s weight is 20 N. What is the mass of the dog? What is the force of gravity of a turtle with a mass of 1 kg, on a planet where g = 4 m/s2. What is the difference between force and weight?

6 Inverse Square Law

7 Two planets are 5 meters apart.
The planets are then moved closer, so they are 1 meter apart. 1 meter How much stronger or weaker is the new force?

8 How much stronger or weaker is the new force?
15 Meters 5 Meters 6 Meters 12 Meters

9 Two planets are 5 meters apart
Two planets are 5 meters apart. The force between the two planets is 10 N F = 10 N 5 meters The planets are then moved closer, so they are 1 meter apart. F = ? 1 meter What is the new force between the planets?

10 What is the new force between the planets?
15 Meters F = 9 N 5 Meters F = ? 6 Meters F = 5 N 12 Meters F = ?

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