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Chapter 12 Review - Forces and Motion
Covers the following: - All forces - Gravity - Inertia And more...
What is the SI unit of force?
What is the net force that results when a pair of balanced forces acts on an object?
When an unbalanced force acts on an object, the object _____.
What kind of friction occurs as a fish swims through water?
As you push a cereal box across a tabletop, the sliding friction acting on the cereal box acts in the ______ direction.
What forces are acting on a falling leaf?
Gravity - air resistance
An open parachute increases air resistance by increasing the _____ _____.
The property of matter that resists changes in motion is called ______.
An orange might roll off your cafeteria tray when you stop suddenly because of the orange's _____.
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 _____.
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
Newton's third law of motion describes _____ and _____ forces.
The product of an object's mass and velocity is its ______.
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
The farther an astronaut travels away from Earth, her weight ______.
The gravitational force between two objects increases as mass ______.
A push or pull is an example of _____.
The type of force measured by a grocery store spring scale is _____.
Weight, due to gravity.
The sum of all the forces acting on an object is called the _____.
If the forces acting on an object produce a net force of zero, the forces are called _____.
The force that opposes the motion of objects that touch as they move past each other is called ______.
The two forces acting on a falling object are gravity and ______.
The tendency of an object to resist any change in its motion is called _____.
The acceleration of an object is equal to the net _____ acting on the object divided by the object's _____.
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