Ch 25 - Gravitational & Frictional Forces

What is the standard unit of force?

• Newton

• Pascal

• Joule

• Watt

What is the force that results when two objects rub against each other?

• Inertia

• Friction

• Tension

• Gravity

What is the force with which an object is attracted toward another object?

• Weight

• Acceleration

• Velocity

• Mass

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Which type of friction happens when an object moves through a liquid or a gas?

• Rolling Friction

• Sliding Friction

• Fluid Friction

• Static Friction

What does the Law of Universal Gravitation state?

• Objects repel each other with a magnetic force

• Objects attract each other with a gravitational force

• Objects repel each other with a gravitational force

• Objects attract each other with a magnetic force

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What is the amount of matter that an object contains?

• Density

• Volume

• Mass

• Weight

What happens when forces are balanced?

• The object decelerates

• The object accelerates

• There is no change in motion

• The object moves in a circular path

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Can cause an object to start moving, speed up, slow down, change direction, or stop

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Scientist who explained how force and motion are related

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Forces that are equal and opposite in direction

• balanced forces

• unbalanced forces

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