Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

New Spec Trilogy Paper 2 > Paper 2 > Flashcards

Paper 2 Flashcards

1
Q

Scalar quantities

A

have magnitude only

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Vector quantities

A

have magnitude and an associated direction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

A vector quantity many be represented by

A

an arrow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Examples of contact forces (4)

A

friction, air resistance, tension, normal contact force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Examples of non-contact forces (3)

A

gravitational force, electrostatic force, magnetic force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

A number of forces acting on an object may be replaced by a single force that has the same effect as the original forces acting together. This force is called

A

the resultant force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

When a force causes an object to move through a distance

A

work is done on the object

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

One joule of work is done when

A

a force of 1 newton causes a displacement of 1 metre

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

1 joule =

A

1 newton-metre

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The extension of an, such as a spring, is directly proportional to

A

the force applied (provided that the limit of proportionality is not exceeded)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Distance is

A

how far an object moves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Distance does not involve

A

direction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Distance is a

A

scalar quantity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Displacement is a

A

vector quantity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Speed does not involve

A

direction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Speed is a

A

scalar quantity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The velocity of an object is

A

its speed in a given direction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Velocity is a

A

vector quantity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Typical speed of walking is

A

1.5m/s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Typical speed of running is

A

3m/s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Typical speed of cycling is

A

6m/s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Typical value for the speed of sound in air is

A

330m/s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

The acceleration of an object can be calculated from

A

the gradient of a velocity-time graph

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

The distance travelled by an object (displacement) can be calculated from

A

the area under a velocity-time graph

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Newtons first law states “If an object is stationary or moving in a straight line,

A

it will continue to do so unless compelled otherwise”

26
Q

When a vehicle travels at a steady speed

A

the resistive forces balance the driving force

27
Q

Newtons second law states “Force is proportional to

A

mass and acceleration”. If these get larger the force gets larger

28
Q

Inertial mass is a measure of

A

how difficult it is the change the velocity of an object

29
Q

Newtons this law states “Whenever two objects interact, the forces they exert on each other are

A

equal and opposite

30
Q

Stopping distance is the sum off

A

braking distance and thinking distance

31
Q

Thinking distance is

A

how far you travel between seeing an incident and getting your foot on the brake

32
Q

Braking distance is

A

how far you travel whilst you are slowing down to a stop

33
Q

Reaction times vary from person to person. Typical values range from

A

0.2s to 0.9s

34
Q

A drivers reaction time can be effected by (3)

A

tiredness, drugs, alcohol

35
Q

The braking distance of a vehicle can be effected by (2)

A

weather conditions, condition of the vehicle

36
Q

Conservation of momentum is

A

the total momentum before an event is equal to the total momentum after the event

37
Q

Longitudinal waves show

A

areas of compression and rarefaction

38
Q

Sound waves traveling through the air are

A

longitudinal

39
Q

Transverse waves are waves where

A

the energy transfer is perpendicular to the vibration of the medium

40
Q

The amplitude of a wave is

A

the maximum displacement of a point on a wave away from its undisturbed position

41
Q

The wavelength of a wave is

A

the distance from a point on one wave to the equivalent point on the adjacent wave

42
Q

The frequency of a wave is

A

the number of waves passing a point each second

43
Q

Electromagnetic waves are

A

transverse waves

44
Q

Different substances may absorb, transmit, refract, or reflect

A

electromagnetic waves in ways which vary with wavelength

45
Q

Some effects, for example refraction, are due to

A

the difference in velocity of the waves in different substances

46
Q

Radio waves can be produced by

A

oscillations in electrical circuits

47
Q

When radio waves are absorbed they may create

A

an alternating current with the same frequency as the radio wave itself (this is how we transmit music)

48
Q

Radio waves are used for

A

television, radio

49
Q

Microwaves are used for

A

satellite communications, cooking food

50
Q

Infrared is used for

A

electrical heaters, cooking food, infrared cameras

51
Q

Visible light is used for

A

fibre optic communications

52
Q

Ultraviolet light is used for

A

energy efficient lights, sun tanning

53
Q

X-rays and gamma rays are used for

A

medical imaging, medical treatment

54
Q

The poles of a magnet are the places where

A

the magnetic forces are strongest

55
Q

A magnetic compass contains a small

A

bar magnet

56
Q

A compass needle points in the direction of

A

the Earths magnetic field

57
Q

When a current flows through a conducting wire

A

a magnetic field is produced around the wire (Right hand grip rule)

58
Q

The magnetic field around a solenoid has a similar shape to

A

that of a bar magnet

59
Q

An electromagnet is

A

a solenoid with an iron core

60
Q

When a live conductor is placed in a magnetic field

A

the magnet creating the field and the conductor exert a force on each other (motor effect)(Flemmings left hand rule)

New Spec Trilogy Paper 2 (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions