Topic 2 🏋️‍♀️🥊

Question 1

What is a vector?

Answer 1

Magnitude and direction

Question 2

What is a scalar quantity?

Answer 2

Magnitude only

Question 3

Give an example of a vector?

Answer 3

Velocity, displacement, momentum, force, acceleration

Question 4

Give an example of a scalar quantity?

Answer 4

Speed, distance, energy

Question 5

Complete the equation.
Velocity =

Answer 5

Displacement / Time

Question 6

Complete the equation.
Acceleration =

Answer 6

Change in Velocity / Time

Question 7

Complete the equation.
Average Speed =

Answer 7

Distance / Time

Question 8

Complete the equation.
Distance travelled =

Answer 8

Average Speed x Time

Question 9

What is the typical walking speed?

Answer 9

1.5 m/s

Question 10

What is the typical running speed?

Answer 10

3 m/s

Question 11

What is the typical cycling speed?

Answer 11

6 m/s

Question 12

What is the typical speed of sound?

Answer 12

330 m/s

Question 13

What experiment do you do to measure human reaction times?

Answer 13

Ruler Drop

Question 14

What is the typical speed for the ruler drop experiment?

Answer 14

0.2 - 0.9 seconds

Question 15

What do light gates remove uncertainty about?

Answer 15

Remove uncertainty about measuring time as no human reaction time

Question 16

In velocity time graphs what does the gradient =

Answer 16

Acceleration

Question 17

In what graph is the area of the shape underneath the graph equal to the distance?

Answer 17

Velocity time graphs

Question 18

What does the gradient = in distance time graphs?

Answer 18

Speed

Question 19

Stopping distance =

Answer 19

Thinking distance + braking distance

Question 20

Give examples of things that affect thinking distance?

Answer 20

Fatigue, drugs, alcohol

Question 21

Give examples of things that affect braking distance?

Answer 21

Road, weather, vehicle conditions

Question 22

What is weight measured with?

Answer 22

Newton - meter

Question 23

What is weight measured in?

Answer 23

Newtons

Question 24

Complete the equation.
Weight =

Answer 24

Mass x Gravitational Field Strength

Question 25

What is Gravitational field strength measured in?

Answer 25

N / kg

Question 26

What is centripetal force?

Answer 26

Acts towards centre of circle. Causes acceleration that changes velocity

Question 27

In circular motion, Velocity is…

Answer 27

Constantly changing

Question 28

In circular motion. Speed…

Answer 28

Stays constant

Question 29

Momentum =

Answer 29

Mass x velocity

Question 30

What is momentum measured in?

Answer 30

Kg m/s

Question 31

What is the conservation of momentum?

Answer 31

Total momentum before event = total momentum after event

Question 32

During collisions Force =

Answer 32

Rate of change in momentum

Question 33

What do seat belts allow regarding momentum?

Answer 33

More time to change momentum. Smaller rate if change of momentum so lower force.

Question 34

Is displacement a vector or scalar quantity?

Answer 34

Vector

Question 35

Is distance a scalar or vector quantity?

Answer 35

Scalar

Question 36

Is velocity a vector or scalar quantity?

Answer 36

Vector

Question 37

Is speed a vector or scalar quantity?

Answer 37

Scalar

Question 38

Is acceleration a vector or scalar quantity?

Answer 38

Vector

Question 39

Is force a vector or scalar quantity?

Answer 39

Vector

Question 40

Is weight a vector or scalar quantity?

Answer 40

Vector

Question 41

Is mass a vector or scalar quantity?

Answer 41

Scalar

Question 42

Is momentum a vector or scalar quantity?

Answer 42

Vector

Question 43

Is energy a vector or scalar quantity?

Answer 43

Scalar

Question 44

What is acceleration in free fall?

Answer 44

10 m/s²