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Physics > Y10 Recall quiz questions > Flashcards

Y10 Recall quiz questions Flashcards

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1
Q

units for mass

A

kg

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2
Q

units for time

A

seconds

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3
Q

What is a vector?

A

something that has size and direction

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4
Q

metres to kilometres

A

÷1000

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5
Q

What is a scalar?

A

something that has size but no direction

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6
Q

cm to metres

A

÷100

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7
Q

Examples of scalar quantities (d,s)

A

distance,speed

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8
Q

Examples of vector quantities (d,f,v)

A

displacement,force,velocity

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9
Q

How are vectors represented

A

using arrows

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10
Q

units for speed

A

m/s

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11
Q

typical walking speed

A

1.5 m/s

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12
Q

typical car speed

A

10-30 m/s

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13
Q

typical running speed

A

3 m/s

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14
Q

typical speed of sound

A

330 m/s

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15
Q

typical cycling speed

A

6 m/s

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16
Q

define accleration

A

the rate of change of velocity

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17
Q

what does the gradient of a distance-time graph give you?

A

the speed

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18
Q

equation for speed

A

speed = distance/time

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19
Q

what does the gradient of a velocity-time graph give you?

A

the acceleration

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20
Q

what does the area under a velocity time graph give you?

A

the total distance travelled

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21
Q

units for acceleration

A

m/s^2

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22
Q

what can a force not do?

A

change the mass of an object

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23
Q

define force

A

A push or pull that acts on an object due to the interaction with another object

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24
Q

units for force

A

newtons

25
Q

define a contact force

A

A force which acts between objects that are physical touching

26
Q

define a non contact force

A

A force which acts at a distance, without any contact between objects

27
Q

examples of contact forces(fart)

A

friction, tension, air resistance

28
Q

examples of non contact forces (gem)

A

gravitational, electrostatic, magnetic

29
Q

units for work done

A

Joules (J)

30
Q

When is work done?

A

An object is moved a distance by a force

31
Q

What are the units for weight?

A

Newtons (N)

32
Q

Where does weight act?

A

Through the centre of gravity of an object

33
Q

What is the equation for weight?

A

W =mg

34
Q

What is the unit for height?

A

m

35
Q

What is the unit for power?

A

Watt

36
Q

Conduction transfers thermal energy mostly in…

A

Solids

37
Q

A Uranium-235 nucleus has energy in the…

A

Nuclear energy store

38
Q

Two electrons very close to each other have energy in the…

A

Electrostatic potential energy store

39
Q

Convection transfers thermal energy in…

A

gases and liquids

40
Q

Only radiation can transfer energy through what medium? (conduction and convection cannot)

A

a vacuum

41
Q

A convection current is when…

A

a hotter fluid rises and a colder fluid sinks

42
Q

What is the best absorber of infrared radiation?

A

a matte black surface

43
Q

What is the best emitter of infrared radiation?

A

a matte black surface

44
Q

Define insulation

A

Decreases thermal energy transfer through conduction

45
Q

What is the equation for work done?

A

work done = force x displacement

46
Q

What is work done?

A

The amount of energy being transferred

47
Q

What is the equation for gravitational potential energy?

A

GPE = m x g x h

48
Q

What is the equation for kinetic energy?

A

Ek = 0.5 x m x v^2

49
Q

What is the highest point above the equilibrium called on a wave?

A

peak

50
Q

define wavelength

A

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

51
Q

define a transverse wave

A

vibration of the wave travel perpendicular to the direction of energy transfer

52
Q

what is the lowest point below the equilibrium called on a wave?

A

trough

52
Q

name an example of a transverse wave

A

light

53
Q

increasing the amplitude increases what?

A

volume of sound

54
Q

unit of frequency?

A

Hz

55
Q

define a longitudinal wave

A

vibrations of the wave are parallel to the direction of energy transfer

56
Q

units of wavelength?

A

m

57
Q

name an example of a longitudinal wave

A

sound

58
Q
A

Physics (10 decks)

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