Force intro quiz-use notes

What is a force?

• A kind of magnetic field

• A measurement of speed

• A type of energy

• A push or a pull on an object

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What is necessary for a force to exist?

• A person must be observing

• An object must be moving

• Two objects must be interacting

• It must be visible

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What are the two types of forces?

• Contact and non-contact

• Internal and external

• Visible and invisible

• Strong and weak

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Which of the following is an example of a contact force?

• Gravity

• Electrical force

• Magnetism

• Friction

What happens to an object when an unbalanced force is applied?

• It accelerates (gains speed)

• It remains stationary

• It changes color

• It becomes heavier

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What is velocity?

• The force applied to an object

• The weight of an object

• The distance an object travels

• The speed of an object in a given direction

If you increase your speed from 2 meters per second to 5 meters per second, what are you doing?

• Slowing down

• Accelerating

• Applying a non-contact force

• Balancing forces

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What would indicate that forces are balanced?

• There is no acceleration (increase in speed)

• The object accelerates

• The object moves in a circular path

• The object changes its shape

In the tug-of-war game, what determines the winning side?

• The side with more people

• The side applying a greater unbalanced force

• The side with a stronger gravitational pull

• The side applying a balanced force

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Why are some forces considered to be non-contact (at-a-distance) forces?

• Objects must be far apart in order to exert a force.

• Objects push each other apart to increase the distance between them.

• Objects do not have to touch each other to experience a force.

• Objects must be large in size in order to exert a force that is strong enough to notice.

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