Combined science P1 - Forces and motion

Question 1

What is the speed of an airliner

Answer 1

250 m/s

Question 2

What is the speed of a high speed train

Answer 2

90 m/s

Question 3

What is the speed of a commuter train

Answer 3

55 m/s

Question 4

What is the speed of the motorway speed limit

Answer 4

31 m/s

Question 5

What is the speed of a ferry

Answer 5

18 m/s

Question 6

What is the speed of the speed limit in towns

Answer 6

10.5 m/s

Question 7

What is the speed of cycling

Answer 7

6 m/s

Question 8

What is the speed of walking

Answer 8

1.4 m/s

Question 9

30 mph =

Answer 9

13 m/s

Question 10

70 mph =

Answer 10

31 m/s `

Question 11

What is the speed of something with a distance of 100 metres and a time of 12 seconds

Answer 11

8.3 m/s

Question 12

What is the distance of something with a speed of 8 metres per second and a time of 25 seconds

Answer 12

200 m

Question 13

What is the time of something with a distance of 400 metres and a speed of 8 m/s

Answer 13

50 s

Question 14

What is the speed of something with a distance of 800 metres and a time of 125 seconds

Answer 14

6.4 m/s

Question 15

What is the distance of something with a speed of 6 metres per second and a time of 500 seconds

Answer 15

3000 m

Question 16

What is the time of something with a distance of 2000 metres and a speed of 6.25 m/s

Answer 16

320

Question 17

What are the scalars? [6]

Answer 17

Distance, speed, energy, mass, time and temperature

Question 18

What are the vectors? [6]

Answer 18

Acceleration, displacement, velocity, weight, force and momentum

Question 19

What is a scalar

Answer 19

Scalars are a quantity that have magnitude (size)

Question 20

What is a vector

Answer 20

Vectors have magnitude (size) and direction

Question 21

What is the difference between displacement and distance travelled

Answer 21

Displacement is the distance from the start whereas distance is how far travelled.

Question 22

What is acceleration

Answer 22

The measure of how quickly the velocity of something is changing. It can be positive if the object is speeding up or negative if it is slowing down. Acceleration is a vector quantity.

Question 23

What is displacement

Answer 23

The distance travelled in a particular direction

Question 24

What is velocity

Answer 24

The speed of the object in a particular direction usually measured in metres per second m/s. Velocity is a vector, speed is not.

Question 25

What is momentum

Answer 25

How hard it is to make an object stop or change direction; or how much damage something might don on impact. Momentum is a vector quantity measured in kilogram metres per second Kgm/s

Question 26

What does a horizontal line on a distance time graph mean

Answer 26

The object (distance from the starting point) is not changing

Question 27

What does a straight sloping line on a distance time graph mean

Answer 27

The object is travelling at a constant speed

Question 28

What does a steeper line on a distance time graph mean

Answer 28

The the object is travelling faster

Question 29

How is speed calculated on a distance time graph

Answer 29

By the gradient of the line

Question 30

What is the equation for acceleration

Answer 30

Change in velocity m/s acceleration= ------------------------------------ Time taken

Question 31

What is the letters for the equation of acceleration

Answer 31

v-u a= ------- t

Question 32

What is the equation for acceleration (harder)

Answer 32

v2 - u2 = 2 x a x d

Question 33

How do you get accurate data for velocity and time as an object falls

Answer 33

Using light gates and a data logger as the object goes through the the first light gate and then the second it calculates the data

Question 34

What is the text book value for acceleration due to gravity

Answer 34

g = 10 m/s2

Question 35

A dog chasing a cat accelerates from the rest at 2 m/s2. How long will it take the dog to reach a velocity of 10 m/s

Answer 35

5 seconds

Question 36

What do curved lines on a distance time graph

Answer 36

Changing speed

Question 37

What is instantaneous speed

Answer 37

Speed at a particular instant

Question 38

Gradient of a velocity time graph =

Answer 38

Velocity ------------- Time

Question 39

On a velocity time graph what does a horizontal line mean

Answer 39

The object is travelling at constant velocity

Question 40

On a velocity time graph what does a sloping line mean

Answer 40

The object is accelerating

Question 41

On a velocity time graph what does a steeper line mean

Answer 41

Greater acceleration

Question 42

On a velocity time graph how do you find the distance travelled

Answer 42

Area under the graph If you split the graph into easier shapes to calculate and then add them together to find the areal

Question 43

What is the equation of momentum

Answer 43

Mass x Velocity

Question 44

Does a slow heavy object have lots of momentum

Answer 44

Yes

Question 45

Does a small fast moving object have lots of momentum

Answer 45

Yes

Question 46

All measurements have a....

Answer 46

Magnitude

Question 47

Scalar quantities have only magnitude, vector quantities have magnitude and ....

Answer 47

Direction