Types of Forces Flashcards

1
Q

What is a force?

A

A force is a push or pull acting upon an object as a result of its interaction with another object.

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2
Q

True or False: Forces can only be exerted by living organisms.

A

False. Forces can be exerted by both living organisms and non-living objects.

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3
Q

Which of the following is not a type of force: gravitational, electromagnetic, frictional, or rotational?

A

Rotational

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4
Q

Define gravitational force.

A

Gravitational force is the force of attraction between two objects with mass.

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5
Q

What type of force is present when a magnet attracts a metal object?

A

Electromagnetic force

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6
Q

Fill in the blank: Friction is a force that opposes the _______ of an object.

A

motion

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7
Q

What is the SI unit of force?

A

Newton (N)

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8
Q

Which law states that for every action, there is an equal and opposite reaction?

A

Newton’s third law of motion

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9
Q

Define tension force.

A

Tension force is the force transmitted through a string, rope, cable, or wire when it is pulled tight by forces acting from opposite ends.

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10
Q

What is the net force on an object when all forces acting on it are balanced?

A

Zero

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11
Q

True or False: Inertia is the tendency of an object to resist changes in its state of motion.

A

True

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12
Q

What type of force is present when a car brakes to a stop?

A

Frictional force

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13
Q

Define normal force.

A

Normal force is the support force exerted upon an object that is in contact with another stable object.

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14
Q

Fill in the blank: The force required to lift an object against the force of gravity is known as ________ force.

A

Lift

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15
Q

Which force allows a rocket to launch into space?

A

Thrust

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16
Q

What is the force that opposes the motion of an object through a fluid (liquid or gas)?

A

Drag force

17
Q

True or False: Weight is a measure of the gravitational force acting on an object’s mass.

A

True

18
Q

Define centripetal force.

A

Centripetal force is the force that keeps an object moving in a circular path.

19
Q

Fill in the blank: The force of air resistance on a falling object increases as the _________ of the object increases.

A

speed

20
Q

What type of force is present when a book rests on a table?

A

Normal force

21
Q

True or False: A force can cause an object to change its shape.

A

True

22
Q

Define spring force.

A

Spring force is the force exerted by a compressed or stretched spring upon any object that is attached to it.

23
Q

Fill in the blank: The force of gravity acting on an object is known as its ________.

A

weight

24
Q

Which force allows a person to walk on the ground?

A

Frictional force