Physics Y9 Flashcards
1
Q
Vector
A
Displacement
2
Q
Distance
A
Scalar
3
Q
Mass
A
Scalar
4
Q
Force
A
Vector
5
Q
Momentum
A
Vector
6
Q
Power
A
Scalar
7
Q
Time
A
Scalar
8
Q
Energy
A
Scalar
9
Q
Temperature
A
Scalar
10
Q
Velocity
A
Vector
11
Q
Work
A
Scalar
12
Q
Frequency
A
Scalar
13
Q
Acceleration
A
Vector
14
Q
Speed
A
Scalar
15
Q
Speed =
A
Distance / Time
16
Q
Distance =
A
Speed x Time
17
Q
Velocity =
A
Displacement / Time
18
Q
Time =
A
Whole distance / Speed
19
Q
Acceleration =
A
Change in Velocity / Time taken for change
20
Q
Change in velocity =
A
Final velocity - initial velocity
21
Q
What is a angled line up on a distance time graph
A
A constant speed
22
Q
Calculating speed on a slant
A
Distance traveled/time taken / 2
23
Q
What is a flat line on a distance time graph
A
Being stationary
24
Q
What is a slant on velocity time graph
A
Constant acceleration
25
What is a flat line on a velocity time graph
Constant velocity
26
How to calculate distance on a slant on a velocity time graph
Base x height x 1/2 of measured area
27
Does velocity go into the negatives (eg. -34m/s2)
Yes, on a downwards slant
28
29
Stopping distance =
Thinking distance + braking distance
30
20mph =
12m of stopping distance
31
30mph=
23 m of stopping distance
32
40mph =
36 m of stopping distance
33
50mph =
53 m of stopping distance
34
60mph =
73 m of stopping distance
35
70mph =
96 m of stopping distance
36
How many energy stores are there
9
37
How is energy transfered
Forces, heating, light, sound or electric current
38
Kinetic energy store =
1/2 x Mass x Velocity squared
39
GPE =
Mass x Gravitational field strength x change in height
40
What’s earths gravity
Roughly 10N/Kg or 9.8 if your being picky
41
Name the 3 ways of heat transfer
Conduction, Convection and Radiation
42
Efficiency =
(Useful energy out / Total energy in) x 100
43
Acceleration =
(Final velocity - initial velocity) /Time taken
