Space, Time and Motion

Question 1

Scalar

Answer 1

Has no direction - an amount of something e.g. Mass, temperature, time, length, speed, energy

Question 2

Vector

Answer 2

Has magnitude and direction e.g. Force, velocity, displacement, acceleration, momentum

Question 3

Adding vectors

Answer 3

Tip to tail!!

Question 4

SUVAT equations

Answer 4

V=u+at
S=1/2(u+v)t
S=ut+1/2at^2
V^2-u^2=2as
Use with constant acceleration

Question 5

Acceleration on a displacement time graph

Answer 5

Looks like a curve. Bigger the acceleration the bigger the gradient. Deceleration curves the other way

Question 6

Velocity on a displacement time graph

Answer 6

Is the gradient. Either gradient of a straight line or the tangent of the curve

Question 7

Constant acceleration on a velocity time graph

Answer 7

Constant acceleration is a straight line. The gradient is the acceleration. The bigger the acceleration the steeper the line.

Question 8

Distance on a velocity time graph

Answer 8

The area underneath the line.

Question 9

General acceleration on a velocity time graph

Answer 9

Is a curve. Increasing acceleration is an increasing curve, whilst decreasing acceleration is a decreasing curve

Question 10

Work=

Answer 10

Force*distance (in direction of force)

Question 11

Power= (2)

Answer 11

Work done per second, e.g. Energy (or work)/time

Force*velocity (in direction of force)

Question 12

Kinetic energy equation

Answer 12

1/2 mv^2

Question 13

Gravitational potential energy equation

Answer 13

Mgh

Question 14

Elastic potential energy

Answer 14

Energy in a stretched rubber band/spring. If object obeys Hookes’ law, calculated by 1/2 kx^2 (k is spring constant, x is extension)