motion

Question 1

average speed

Answer 1

= total distance travelled / total time taken

Question 2

two methods of determining speed in laboratory

Answer 2

1. light gates
2. interrupt card

Question 3

instantaneous speed (also just s=d/t)

Answer 3

speed at a particular moment in time

Question 4

acceleration

Answer 4

rate of change of an object’s velocity

Question 5

velocity

Answer 5

speed of an object in a stated direction

Question 6

vector quantity

Answer 6

BOTH magnitude (size) AND direction

Question 7

scalar quantity

Answer 7

ONLY magnitude NO direction

Question 8

acceleration

Answer 8

= change in velocity / time taken

Question 9

units of acceleration

Answer 9

m/s^2
OR
m/s per second

Question 10

examples of scalar

Answer 10

1.distance
2. speed
3. time
4. mass
5. energy
6. temperature

Question 11

examples of vector

Answer 11

1. force
2. weight
3. velocity
4. acceleration
5. momentum
6. electric field strength
7. gravitational field strength

Question 12

acceleration of free fall g for an object near to the surface of the Earth is…

Answer 12

…approximately constant and is approximately 9.8m/s

Question 13

motion of objects falling in a
uniform gravitational field with and without air/ liquid resistance (including reference to terminal velocity)