P2.1 Flashcards

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1
Q

How do you calculate distance travelled (m)

A

Speed (m/s) x time (s)

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2
Q

How do you calculate average speed (m/s)?

A

Total distance (m) divided by total time (s)

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3
Q

What is a scalar

A

Something that only has a magnitude and not a direction.

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4
Q

What is a vector

A

Something that has both a magnitude and a direction

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5
Q

What is displacement

A

The shortest distance between 2 points

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6
Q

What is stationary speed on a graph?

A

A straight, horizontal line

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7
Q

What is constant speed on a graph?

A

A straight diagonal line

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8
Q

What is slowing down on a graph (decelerating)?

A

A curved line that goes up and then bends into a vertical line

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9
Q

What does a speeding up graph look like (accelerating)?

A

A curve that goes upwards

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10
Q

How do you calculate acceleration?

A

Change in velocity divided by time

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11
Q

How do you calculate speed?

A

Change in distance divided by time

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12
Q

How do you calculate velocity?

A

Change in displacement divided by time

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13
Q

How do you calculate final velocity?

A

V(2) = U(2) + 2as

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14
Q

What is U

A

Initial velocity

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15
Q

What is s

A

Displacement

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16
Q

What is a

A

Acceleration

17
Q

What is v

A

Velocity (speed)

18
Q

What is the formula for kinetic energy?

A

0.5MV(2)

19
Q

What is m

A

Mass (kg)

20
Q

What are the units for kinetic energy?

A

Joules