1st Half Forces and Motion Flashcards

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1
Q

State the unit for mass

A

Kg

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2
Q

State the unit for speed

A

m/s

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3
Q

State the unit for acceleration

A

m/s2

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4
Q

State the unit for force

A

N

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5
Q

State the unit for time

A

s

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6
Q

What does a stand for?

A

acceleration

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7
Q

What does t stand for?

A

time

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8
Q

What does m stand for?

A

momentum

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9
Q

What does v stand for?

A

final velocity

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10
Q

What does u stand for?

A

initial velocity

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11
Q

What does F stand for?

A

Force

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12
Q

State the equation involving speed, distance and time

A

Speed = distance / time

s=d/t

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13
Q

State the equation involving final velocity

A

(final velocity)2 = (initial velocity)2 + (2 x acceleration x distance)

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14
Q

Whats the difference between vector and scalar quantities?

A

Scalar - magnitude only e.g. speed

Vector - magnitude and direction e.g. velocity

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15
Q

Name some scalar quantities

A

speed

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16
Q

Name some vector quantities

A

velocity

force

17
Q

Force can change the

A

speed, shape or direction of an object

18
Q

State Newtons 1st law

A

An object remains stationary or at constant velocity unless there is a resultant force on it
Zero resultant force means object is stationary

19
Q

Weight is…

A

A force

20
Q

What is Newtons 2nd law?

A

When there is a resultant force on a body, it will accelerate according to the equation
Force = mass x acceleration
F=ma