Motion , energy , electricity

Flash cards with questions and answers. 

HideShow resource information
What is speed ?
How fast you are going
1 of 51
What is velocity ?
How fast you are going and direction
2 of 51
What is gradient equal to ?
Speed
3 of 51
What does each part of a distance time graph show ?
Flat - stationary , Straight up - steady speed , Steep - fast , Downhill - going back , Levelling off - slowing down
4 of 51
What is acceleration ?
How quickly velocity is changing
5 of 51
What is the gravitational force ?
The force of attraction between all masses
6 of 51
What is weight measured in ?
Newtons
7 of 51
what is the resultant force ?
The overall force on a point or object
8 of 51
Wha does resultant force mean ?
A change in velocity
9 of 51
What will happen if the resultant force on a stationary object is 0 ?
It will remain stationary
10 of 51
What will happen if there is no resultant force ?
It will carry on moving
11 of 51
What are reaction forces ?
Equal and opposite
12 of 51
What does friction do ?
Slows things down
13 of 51
What does drag do ?
Increases the speed
14 of 51
What will reach a terminal velocity ?
Objects falling through fluids
15 of 51
What does the terminal velocity depend on ?
Shape and area
16 of 51
What is thinking distance ?
The distance the vehicle travels during the drivers reaction time
17 of 51
What factors affect thinking distance ?
How fast you are going , tiredness , drugs
18 of 51
What is Braking distance ?
The distance the car travels under the braking force
19 of 51
What factors affect braking distance ?
How fast your going , Quality of brakes , Quality of tyres , Quality of grip
20 of 51
When is work done ?
When a force moves an object through a distance , energy is transferred and work is done
21 of 51
What is gravitational potential energy ?
Energy due to height
22 of 51
What is kinetic energy ?
The energy of movement
23 of 51
What does kinetic energy gained equal ?
Potential energy lost
24 of 51
What do falling objects convert Ep into ?
Ek
25 of 51
What is the extension of an object ?
It is directly proportional to force
26 of 51
What is power ?
The rate of doing work
27 of 51
What is power measured in ?
Watts
28 of 51
What does momentum before equal ?
Momentum after
29 of 51
What do forces cause ?
A change in momentum
30 of 51
What are cars designed to do ?
Convert kinetic energy safely in a crash
31 of 51
What does the size of a car engine determine ?
How powerful the car is
32 of 51
What do air bags do ?
Slow you down gradually to prevent you hitting hard surfaces in a crash
33 of 51
What does friction cause ?
A build up of static
34 of 51
What do likes and opposites do ?
Repel and attract
35 of 51
Can charges move easily through conductors ?
Yes
36 of 51
What does the total charge through a circuit depend on ?
Current and time
37 of 51
The greater the resistance across a component the .....
Smaller the current that flows
38 of 51
What does an Ammeter do ?
Measures the current
39 of 51
What does a voltmeter do ?
Measures the potential difference
40 of 51
Resistance increases with ......
Temperature
41 of 51
Does current only flow in one direction through a diode ?
Yes
42 of 51
What does an Light emitting diode do ?
Emits light when a current flows through it in a forward direction
43 of 51
What is an LDR dependant on ?
Light
44 of 51
What is a thermistor dependant on ?
Temperature
45 of 51
In a series circuit is the potential difference shared ?
Yes
46 of 51
What is the current in a series circuit ?
The same everywhere
47 of 51
In a parallel circuit what is the current shared between ?
Branches
48 of 51
What is the P.D in a parallel circuit ?
The same for all components
49 of 51
Give an example of a series circuit ?
Fairy lights
50 of 51
Give an example of a parallel circuit ?
Everything in a car
51 of 51

Other cards in this set

Card 2

Front

What is velocity ?

Back

How fast you are going and direction

Card 3

Front

What is gradient equal to ?

Back

Preview of the front of card 3

Card 4

Front

What does each part of a distance time graph show ?

Back

Preview of the front of card 4

Card 5

Front

What is acceleration ?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Forces and Motion resources »