Physics Topic 1

Question 1

scalar

Answer 1

only has a magnitude

Question 2

examples of scalars

Answer 2

distance
size
mass
energy

Question 3

vector

Answer 3

has both magnitude and size

Question 4

examples of vectors

Answer 4

displacement
velocity
acceleration
force
weight
momentum

Question 5

calculation for average speed

Answer 5

average speed (m/s) = distance (m)/ time taken(s)

Question 6

average walking speed of a person ?

Answer 6

1.4m m/s

Question 7

Distance Time Graphs: Horizontal lines means object ..

Answer 7

is stationary.

Question 8

Distance Time Graphs:
Straight, sloping lines means ..

Answer 8

object is moving at a constant speed.

Question 9

Distance Time Graphs:
The steeper the line ..

Answer 9

the faster the object is travelling.

Question 10

Distance Time Graphs:
The speed is calculated from ..

Answer 10

the gradient of the line.

Question 11

acceleration calculation

Answer 11

acceleration m/s^2 = change in velocity (m/s) / time taken (s)

Question 12

Velocity/Time Graphs:
Horizontal line shows a ..

Answer 12

constant velocity.

Question 13

Velocity/Time Graphs:
Sloping line shows ..

Answer 13

acceleration.

Question 14

Velocity/Time Graphs:
The steeper the ..

Answer 14

greater than the acceleration.