P2.1

Question 1

what type of quantity is velocity?

Answer 1

vector

Question 2

vector

Answer 2

magnitude and direction

Question 3

scalar

Answer 3

magnitude

Question 4

what type of quantity is speed?

Answer 4

scalar

Question 5

displacement

Answer 5

no matter the path taken to get there it’s the distance from the start point to end

Question 6

what does velocity depend on?

Answer 6

which direction you are going

Question 7

how do you calculate the distance covered on a velocity time graph?

Answer 7

area under the line

Question 8

what type of values does deceleration use?

Answer 8

negative values

Question 9

what type of quantity is kinetic energy?

Answer 9

scalar

Question 10

what is gravity measured in?

Answer 10

N/Kg

Question 11

equation for speed

Answer 11

speed = distance/ time

Question 12

equation for acceleration

Answer 12

acceleration = change in velocity / time taken

Question 13

equation for Kinetic Energy

Answer 13

KE = 1/2 x m x v^2

Question 14

Kinetic Energy

Answer 14

an object with a larger mass will have more kinetic energy than a smaller object at the same velocity

Question 15

equation for gravitational potential energy

Answer 15

GPE = m x g x h

Question 16

gravitational potential energy

Answer 16

when an object changes height it gains or loses gravitational potential energy

Question 17

when do we use equations of motion?

Answer 17

in situations where an object has a constant acceleration

Question 18

s=
u=
v=
a=
t=

Answer 18

s=displacement
u=initial velocity
v=final velocity
a=acceleration
t=time

Question 19

equation of motion using initial velocity, final velocity, acceleration and time

Answer 19

a = (v-u) / t

Question 20

equation of motion using initial velocity, final velocity, acceleration and speed

Answer 20

v^2 - u^2 = 2as

Question 21

what could improve in the trolley and ramp PAG?

Answer 21

timing with light gates