Quiz about Physics Definitions and formulae

Question 1

SI unit for mass

Accepted Answer

kilograms

Answer

grams

Answer

pounds

Answer

ounces

Question 2

SI unit for length

Accepted Answer

meters

Answer

miles

Answer

centimeters

Answer

inches

Question 3

SI unit for time

Accepted Answer

seconds

Answer

minutes

Answer

hours

Answer

days

Question 4

SI unit for current

Accepted Answer

ampere

Answer

millivoltage

Answer

voltage

Answer

milliampere

Question 5

SI unit for power

Accepted Answer

Watts

Answer

Joules

Answer

Newtons

Answer

Meters

Question 6

SI unit for power

Accepted Answer

Joules / second

Answer

Joules

Answer

Joules second

Answer

second / Joules

Question 7

SI unit for force

Accepted Answer

Newtons

Answer

Joules

Answer

Watts

Answer

meters

Question 8

milli is

Accepted Answer

x 10-3

Answer

x 10-1

Answer

x 10-2

Answer

x 10-6

Answer

x 10-9

Question 9

nano is

Accepted Answer

x 10-9

Answer

x 10-1

Answer

x 10-2

Answer

x 10-3

Answer

x 10-6

Question 10

deci is

Accepted Answer

x 10-1

Answer

x 10-2

Answer

x 10-3

Answer

x 10-6

Answer

x 10-9

Question 11

micro is

Accepted Answer

x 10-6

Answer

x 10-1

Answer

x 10-2

Answer

x 10-3

Answer

x 10-9

Question 12

kilo is

Accepted Answer

x 103

Answer

x 106

Answer

x 109

Answer

x 1012

Question 13

Giga is

Accepted Answer

x 109

Answer

x 103

Answer

x 106

Answer

x 1012

Question 14

Mega is

Accepted Answer

x 106

Answer

x 103

Answer

x 109

Answer

x 1012

Question 15

centi is

Accepted Answer

x 10-2

Answer

x 10-1

Answer

x 10-3

Answer

x 10-6

Answer

x 10-9

Question 16

Period of a pendulum depends ONLY on...

Accepted Answer

length of pendulum

Answer

angle at which it is released

Answer

mass of pendulum bob

Answer

size of pendulum bob

Question 17

Newtons 3rd Law states that

Accepted Answer

When body A exerts a force on body B, body B will exert an equal and opposite force on body A.

Answer

Fnet = ma

Answer

Inertia

Answer

An object will continue in its state of rest or uniform motion, unless a resultant force acts on it.

Question 18

Newtons 2nd law states that

Accepted Answer

Fnet = ma

Answer

When body A exerts a force on body B, body B will exert an equal and opposite force on body A.

Answer

Inertia

Answer

An object will continue in its state of rest or uniform motion, unless a resultant force acts on it.

Question 19

Newtons 1st law states that

Accepted Answer

An object will continue in its state of rest or uniform motion, unless a resultant force acts on it.

Answer

When body A exerts a force on body B, body B will exert an equal and opposite force on body A.

Answer

Fnet = ma

Answer

Inertia

Question 20

What is inertia?

Accepted Answer

the reluctance of an object to change its state of rest or uniform motion

Answer

the reluctance of an object to change its state of rest

Answer

the reluctance of an object to change its state of uniform motion

Question 21

What does inertia depend on?

Accepted Answer

mass of object

Answer

weight of object

Answer

volume of an object

Answer

shape of an object

Question 22

SI unit for energy

Accepted Answer

Joules

Answer

Watts

Answer

Newtons

Answer

meters

Question 23

Distance

Accepted Answer

= area under speed-time graph

Answer

= speed / time

Answer

= time / speed

Answer

= displacement

Question 24

Acceleration

Accepted Answer

acceleration = change in velocity / time taken

Answer

acceleration = change in speed

Answer

acceleration = velocity x time

Answer

acceleration = average speed

Question 25

distance =

Accepted Answer

area under speed-time graph

Answer

gradient of dist-time graph

Answer

gradient of displ-time graph

Answer

gradient of speed-time graph

Answer

area under vel-time graph

Question 26

displacement =

Accepted Answer

net area under vel-time graph

Answer

gradient of dist-time graph

Answer

gradient of displ-time graph

Answer

gradient of speed-time graph

Answer

area under speed-time graph

Question 27

speed =

Accepted Answer

gradient of dist-time graph

Answer

gradient of displ-time graph

Answer

gradient of vel-time graph

Answer

area under speed-time graph

Answer

area under vel-time graph

Question 28

velocity =

Accepted Answer

gradient of displ-time graph

Answer

gradient of dist-time graph

Answer

gradient of speed-time graph

Answer

area under speed-time graph

Answer

area under vel-time graph

Question 29

acceleration =

Accepted Answer

gradient of speed-time graph

Answer

gradient of dist-time graph

Answer

gradient of displ-time graph

Answer

area under speed-time graph

Answer

area under vel-time graph

Question 30

acceleration =

Accepted Answer

gradient of vel-time graph

Answer

gradient of dist-time graph

Answer

gradient of displ-time graph

Answer

area under speed-time graph

Answer

area under vel-time graph

Question 31

Formula for acceleration

Accepted Answer

a = (final velocity - initial velocity) / time taken

Answer

a = (initial velocity - final velocity) / time taken

Answer

a = (initial velocity + final velocity) / time taken

Answer

a = (final velocity - initial velocity) x time taken

Question 32

Formula for velocity

Accepted Answer

v = change in displacement / time

Answer

v = distance*time

Answer

v = change in distance / time

Answer

v = time / distance

Question 33

What happens when an object reaches terminal velocity

w = weight and A.R = air resistance

Accepted Answer

w = A.R

Answer

w > A.R

Answer

w < A.R

Answer

Only force is w

Question 34

Formula for net force

Accepted Answer

Fnet = ma

Answer

Fnet = m/a

Answer

Fnet = a/m

Question 35

_______________________ is equal to mass times acceleration

Accepted Answer

Resultant Force

Answer

Distance

Answer

Force

Answer

Work

Question 36

Pressure

Accepted Answer

pressure = force / area

Answer

pressure = force x area

Answer

pressure = area / force

Answer

pressure = force + area

Question 37

Density

Accepted Answer

density = mass / volume

Answer

density = weight / volume

Answer

density = mass x volume

Answer

density = volume / mass

Question 38

Mass refers to the?

Accepted Answer

amount of matter in an object

Answer

weight of an object

Answer

both matter and weight

Answer

amount of gravitational force on an object

Question 39

Formula for weight

Accepted Answer

w = mg

Answer

w = m/g

Answer

m = wg

Answer

w = g/m

Question 40

GPE

Accepted Answer

GPE = mgh

Answer

GPE = wmg

Answer

GPE = mh

Answer

GPE = mgh²

Question 41

W = work done, F = force, s = distance moved by object in direction of the force

Accepted Answer

W = F x s

Answer

W = F / s

Answer

W = F / m

Answer

W = s / F

Question 42

___________________ is the rate at which work is done, or the rate at which energy is transferred

Accepted Answer

Power

Answer

potential energy

Answer

kinetic energy

Question 43

Power

Accepted Answer

power = change in energy / time

Answer

power = change in energy x time

Answer

power = time / change in energy

Question 44

Formula for power

Accepted Answer

P = W / t

Answer

P = W * t

Answer

P = E * t

Question 45

Power

Accepted Answer

power = work done / time

Answer

power = work done x time

Answer

power = time / work done

Question 46

Charge flow, Q

Accepted Answer

Q = It

Answer

Q = I / t

Answer

Q = t / I

Question 47

Potential Difference, V

Accepted Answer

V = RI

Answer

V = R / I

Answer

V = I / R

Question 48

Power, P

Accepted Answer

P = VI

Answer

P = p x d

Answer

P = V / I

Answer

P = I / V

Question 49

Work Done, W

Accepted Answer

W = Q x V

Answer

W = Q / V

Answer

W = V / Q

Question 50

gravitational field strength refers to the

Accepted Answer

gravitational force per unit mass

Answer

gravitational force acting on an object

Answer

region in which a mass experiences a force due to gravity

Question 51

gravitational field refers to the

Accepted Answer

region in which a mass experiences a force due to gravity

Answer

gravitational force acting on an object

Answer

gravitational force per unit mass

Question 52

weight refers to the

Accepted Answer

gravitational force acting on an object

Answer

region in which a mass experiences a force due to gravity

Answer

gravitational force per unit mass

Question 53

which of the following ways increases stability?

Accepted Answer

lowering centre of gravity

Answer

raising centre of gravity

Answer

decreasing base area

Answer

placing more mass at the top

Question 54

which of the following ways increases stability?

Accepted Answer

increasing the base area

Answer

raising centre of gravity

Answer

decreasing the base area

Answer

placing more mass at the top

Question 55

centre of gravity refers to the

Accepted Answer

point from which entire weight of object acts from

Answer

point from which entire mass of object is at

Answer

point at which most force is felt

Answer

point at which is somewhere along object

Question 56

internal energy consists of

Accepted Answer

internal potential energy

Answer

potential energy

Answer

kinetic energy

Answer

elastic energy

Question 57

internal K.E depends only on

Accepted Answer

temperature of object

Answer

temperature of particles

Answer

average separation of particles

Answer

physical state of object

Question 58

internal K.E means

Accepted Answer

sum of K.E of all particles

Answer

K.E of object

Answer

K.E of a particle

Question 59

internal P.E depends only on

Accepted Answer

physical state of object

Answer

temperature of object

Answer

temperature of particles

Answer

average speed of particles

Question 60

Which of the following are criteria for total internal reflection (tick all that applies)

Accepted Answer

light must travel from optically denser medium to optically less dense medium

Accepted Answer

angle of incidence > critical angle

Answer

light must travel from optically less dense medium to optically denser medium

Answer

angle of incidence < critical angle

Question 61

critical angle is a type of

Accepted Answer

angle of incidence

Answer

angle of refraction

Answer

angle of reflection

Question 62

critical angle refers to

Accepted Answer

angle of incidence for which angle of refraction in optically less dense medium is 90^o

Answer

angle of incidence for which angle of reflection in optically less dense medium is 90^o

Answer

angle of incidence for which angle of reflection in optically denser medium is 90^o

Answer

angle of incidence for which angle of refraction in optically denser medium is 90^o

Question 63

wavefront is defined as an imaginary line that

Accepted Answer

joins all adjacent points that are in phase

Answer

joins all crests only

Answer

join all troughs only

Answer

join all points of equilibrium

Question 64

Define period

Accepted Answer

time taken for one complete oscillation

Answer

time taken for oscillations

Answer

number of complete oscillations per unit time

Physics Definitions and formulae

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