Gravity Inertia and Velocity

What is gravity?

• A resistance to change. 
• A force that attracts and repels objects.
• A force that pulls objects "in" or together.
• A force that causes objects in motion to stay in motion. 

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Two factors impacting the strength of the force of gravity between 2 objects are...

• mass and distance 
• mass and matter
• distance and weight 
• weight and mass

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Because of inertia, a moving object will keep ________.

• at rest
• moving
• in one spot
• inertia 

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Which of the following is an example of inertia?

• Slamming on the breaks in your car and flying forward.
• An apple falling off of a tree. 
• Running at a cross country event. 

Which model has greater gravitational attraction (if any)

• Model A
• Model B
• Both Model A and Model B (same gravity)

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The more mass equals...

• more gravity

• less gravity

• more jump distance

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A shorter distance does what to gravity?

• Increases it

• Decreases it

• Increases then decreases it

• Distance does not affect gravity

Which planet orbits the sun the fastest?

• Mercury (1st closest)

• Mars (4th closest)

• Jupiter (5th closest)

• Neptune (8th closest)

Which planet orbits the sun the slowest?

• Mercury (1st closest)

• Mars (4th closest)

• Jupiter (5th closest)

• Neptune (8th closest)

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What keeps each planet in orbit around the Sun?

• a balance of inertia and gravity

• more gravity than inertia

• more inertia than gravity

• a balance of weight and mass

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