Forces and Motion Flashcards

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1
Q

What is a force

A

A force is a push or pull on a body

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2
Q

What do all forces have

A

All forces have both size and direction

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3
Q

What is force measured in
What is force measured with

A

Force is measured in newtons
It is measured with a forcemeter or a newtonmeter

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4
Q

Types of forces

A

Air Resistance
Lift Force
Spring/Tension
Friction
Gravitational Force
Electrostatic Force
Contact Force
Magnetic Force
Upthrust/Buoyancy
Drag Force
Thrust

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5
Q

What is air resistance

A

Air resistance is a force that slows down a falling object

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6
Q

What is lift force

A

A force that acts perpendicular to the motion

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7
Q

What is tension

A

A force that acts in the opposite direction of the gravitational force

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8
Q

What is friction

A

A force that makes a moving object slows down and eventually stop

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9
Q

What is gravitational force

A

A force that causes an object to accelerate when falling to the ground
It is also what keeps you on the ground

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10
Q

What is electrostatic force

A

A force that repels like charges but attracts unlike charges to eachother

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11
Q

What is contact force

A

Contact force is any force that occurs when two objects make contact with eachother

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12
Q

What is magnetic force

A

The attraction or repulsion that arises between electrically charged particles

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13
Q

What is thrust

A

Thrust is a force that makes an aircraft move in the direction of its motion

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14
Q

What is drag force

A

A force that prevents objects falling through air from speeding up too quickly

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15
Q

What is water resistance

A

A force that uses friction to slow down objects moving through water

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16
Q

What do you do to make things move

A

Make a force act on them

17
Q

What can a force do

A

Make an object move
Stop a moving object
Change the speed & direction of a moving object
Change the shape & size of an object

18
Q

What would happen if an unbalanced force acted on an object that’s already in motion

A

It would change the speed & direction of the object