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Physics > Forces And Motion > Flashcards

Forces And Motion Flashcards

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1
Q

What is the up force for an object on the ground?

A

Normal contact force

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2
Q

What is the down force for an object on the ground?

A

Gravitational force and weight

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3
Q

What is the backwards force for an object on the ground?

A

Air resistance and Friction

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4
Q

What is the forwards force for an object on the ground?

A

Forwards force

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5
Q

Whats the backwards force for an object in the air?

A

Air resistance or drag

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6
Q

What is the down force for an object in the air?

A

Weight

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7
Q

What is the up force for an object in the air?

A

Lift

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8
Q

What is the forwards force for an object in the air with an engine?

A

Thrust

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9
Q

When does thrust only work?

A

When there is an engine

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10
Q

What is the forwards force for a boat?

A

Thrust or forwards force from the wind in the sails

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11
Q

What is the backwards force for a boat?

A

Water resistance or drag

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12
Q

What is the up force for a boat?

A

Upthrust

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13
Q

What is the downwards force for a boat?

A

Weight

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14
Q

What are the 4 energy stores?

A

Chemical, Kinetic, Gravitational potential and thermal/internal.

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15
Q

What is chemical energy?

A

Chemical energy, the energy stored in the bonds of chemical compounds.

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16
Q

What is Gravitational potential energy?

A

Position in a gravitational field and springs.

17
Q

What is kinetic energy?

A

Kinetic energy is the energy an object has because of its motion

18
Q

What is thermal/internal energy?

A

Thermal energy refers to the energy contained within a system that is responsible for its temperature

19
Q

What are the 5 energy transfers?

A

Light
Sound
Electricity
Heat
Force

20
Q

What is the equation for speed?

A

Speed= distance/time

21
Q

1) What is speed measured in?
2) What is distance measurement in?
3) What is time measured in?

A

1) Mps or M/S (Meters per second)
2) Meters
3) Seconds

22
Q

How do you convert hours to seconds?

A

You can multiply the number of hours by 3600 to convert hours into seconds.

23
Q

How do you convert minutes to seconds

A

Multiply the number of minutes by 60 to get the number of seconds

24
Q

What is the equation for movement?

A

Movement= force x distance [from pivot]

25
Q

What is movement measured in?

A

Newton metres

26
Q

What is force measured in?

A

Newtons

27
Q

What is the equation for work done?

A

Work done = force x distance moves in the direction of the force

28
Q

What is work done measured in?

A

Joules

Physics (4 decks)

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