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Covers the following:
- All forces
- Gravity
- Inertia
And more...

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What is the SI unit of force?

The Newton

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What is the net force that results when a pair of balanced forces acts on an object?

Zero

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When an unbalanced force acts on an object, the object _____.

accelerates

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What kind of friction occurs as a fish swims through water?

Fluid friction

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As you push a cereal box across a tabletop, the sliding friction acting on the cereal box acts in the ______ direction.

Opposite

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What forces are acting on a falling leaf?

Gravity - air resistance

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An open parachute increases air resistance by increasing the _____ _____.

surface area

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The property of matter that resists changes in motion is called ______.

Inertia

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An orange might roll off your cafeteria tray when you stop suddenly because of the orange's _____.

Inertia

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According to Newton's second law of motion, the acceleration of an object equals the net force acting on the object divided by the object's _____.

Inertia

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If a force of 10 N is applied to an object with a mass of 2 kg, the object will accelerate at _____.

5 m/s squared

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Newton's third law of motion describes _____ and _____ forces.

Action; Reaction

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The product of an object's mass and velocity is its ______.

Momentum

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What is the momentum of a 25 kg ice skater gliding across the ice at a speed of 5 m/s?

125 kg times m/s squared

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The farther an astronaut travels away from Earth, her weight ______.

Decreases

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The gravitational force between two objects increases as mass ______.

Increases

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A push or pull is an example of _____.

Force

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The type of force measured by a grocery store spring scale is _____.

Weight, due to gravity.

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The sum of all the forces acting on an object is called the _____.

Net force.

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If the forces acting on an object produce a net force of zero, the forces are called _____.

Balanced forces

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The force that opposes the motion of objects that touch as they move past each other is called ______.

Friction

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The two forces acting on a falling object are gravity and ______.

Air resistance

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The tendency of an object to resist any change in its motion is called _____.

Inertia

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The acceleration of an object is equal to the net _____ acting on the object divided by the object's _____.

Force, Inertia