Record Breakers

Question 1

Speed

Answer 1

How fast something is

Question 2

How to calculate:

Answer 2

Time = distance/speed
Distance = speed * time
Speed = Distance / time

Question 3

Average speed

Answer 3

Speed calculated over a long period

Question 4

instantaneous speed

Answer 4

speed calculated over a short period of time

Question 5

accuracy

Answer 5

How close the result is to the true value

Question 6

Reliability

Answer 6

How repeatable and experiment is

Question 7

Reaction time

Answer 7

The length of time for a person to react to a stimulus

Question 8

Force needs:

Answer 8

A number, a unit and a direction

Question 9

Balanced forced

Answer 9

a force acting equally on opposite sides, if balance an object is moving at a constant speed or stationary

Question 10

Unbalanced forces

Answer 10

Can change: speed, shape or direction

Question 11

Air resistance

Answer 11

Contact force caused by air particles hitting and object

Question 12

Terminal Velocity

Answer 12

The fastest an object can get at a constant speed

Question 13

Acceleration

Answer 13

The rate of change in speed over a period of time

Question 14

a =

Answer 14

acceleration (m/s2)

a = (v - u) / t

Question 15

v =

Answer 15

final velocity (m/s) 
v = (a * t) + u

Question 16

u =

Answer 16

initial velocity (m/s)
u = (a * t) + v

Question 17

t =

Answer 17

time (s)

t = (v - u) / a