Understanding Collisions

What is a contact force?

• A force that acts at a distance

• An interaction between objects that are physically touching

• A force that resists motion

• Stored energy due to position

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How is force measured?

• In kilograms

• In meters per second squared

• In Newtons

• In joules

What is the amount of matter in an object called?

• Force

• Mass

• Acceleration

• Inertia

What is the rate at which an object is changing speed called?

• Force

• Mass

• Acceleration

• Inertia

What happens during a collision?

• Objects move apart

• Energy is transferred and solid objects change shape

• Objects remain unchanged

• Objects lose mass

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What factors affect the damage during a collision?

• The color of the objects

• The temperature of the objects

• The material, speed, and angles of the objects

• The size of the objects

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What is kinetic energy?

• Stored energy due to position

• The energy of motion

• A force that resists motion

• An object's tendency to resist a change in motion

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What is potential energy?

• The energy of motion

• A force that resists motion

• Stored energy due to position

• An object's tendency to resist a change in motion

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What is friction?

• A force that resists motion between surfaces that are pressed together

• The energy of motion

• Stored energy due to position

• An object's tendency to resist a change in motion

What is inertia?

• The energy of motion

• Stored energy due to position

• A force that resists motion

• An object's tendency to resist a change in motion