Brainscape's Knowledge GenomeTM

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


See full index

Physics 11 > exam prac qs > Flashcards

exam prac qs Flashcards

1
Q

what is the term for the line an object moves along from a particular starting point

A

direction

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

true or false

position is the distance of an object from a particular reference point

A

false

the distance and direction of an object from the reference point

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

One object starts to vibrate at its natural frequency. A nearby object, with the same natural frequency, also starts to vibrate due to the vibration of the first object. This phenomenon is known as:

A

resonance

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

the pitch of a musical note is determined by which part of the wave?

A

frequency

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

which wave property most affects the intensity or ‘loudness’ of the sound?

A

amplitude

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

the bending of a wave as it moves through a hole or around an obstacle is known as:

A

diffraction

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

the time required for a vibrating object to complete one full cycle is the:

A

period

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

in a transverse wave, the particles move __________ to the direction of the wave motion

A

perpendicular

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

rarefaction

A

farther apart

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

compression

A

closer together

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

a wave changes direction because it enters a new medium, this is known as:

A

refraction

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

What is a vibration?
(a) the material that permits the transmission of
wave energy
(b) the cyclic motion of an object about an
equilibrium point
(c) the transfer of energy through a material
(d) motion that repeats its path

A

(b) the cyclic motion of an object about an
equilibrium point

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

What causes vibrations? (8.1) K/U
(a) thermal energy
(b) intermolecular forces allowing distances between
atoms to vary without losing energy
(c) the net motion of the particles in a medium
(d) none of the above

A

(c) the net motion of the particles in a medium

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

Which of the following aff ect(s) how a medium
transmits vibrations? (8.1) K/U
(a) molecular structure
(b) density
(c) temperature
(d) all of the above

A

(d) all of the above

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

Longitudinal vibrations in a gas form regions of
(a) compressions and rarefactions
(b) decompression and rarefi ed air
(c) quiet and sound
(d) none of the above

A

(a) compressions and rarefactions

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

Water waves and waves produced by plucking string instruments are two examples of waves in which the particles vibrate in a direction that is perpendicular to the direction of the fl ow of energy. What are these waves called? (8.2) K/U
(a) natural waves
(b) longitudinal waves
(c) transverse waves
(d) sound waves

A

(c) transverse waves

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

Th e time it takes for a vibrating particle in a wave to complete one cycle is the
(a) period
(b) frequency
(c) wave speed
(d) wavelength

A

(a) period

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

Th e universal wave equation applies to
(a) complex waves
(b) transverse waves
(c) ultrasonic waves
(d) all of the above

A

(d) all of the above

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

true or false:

displacement is found as the area under a v-t graph

A

true

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

true or false:

g=9.8m/s^2 is the number and symbol for gravity

A

false

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

true or false:

the slope of the line on a velocity-time graph represents average acceleration

A

true

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

the term uniform motion means…

A

speed and direction must be constant

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

what does a vt graph look like that’s slowing down

A

gradual slope

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

in an equation with Δd/Δt and you have 2 values for displacement and 2 values for time, do you add the times or subtract them?

A

ADD them always

even if you’re finding speed or velocity

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

true or false

The initial horizontal velocity is always the same as the final horizontal velocity.

A

true

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

true or false

The acceleration at the top of the projectile’s flight path is zero.

A

false (-9.8m/s^2 down)

27
Q

true or false

The initial vertical velocity is always the same as the final vertical velocity.

A

false

28
Q

true or false

The vertical velocity at the top of the projectile’s flight path is always zero.

A

true

29
Q

true or false

The acceleration of the projectile in the horizontal (x) direction is 9.8 m/s2.

A

false

30
Q

true or false

for projectile motion, there is zero acceleration in the x direction

A

true

31
Q

true or false

for projectile motion, when the object is about to hit the ground, the y-component of the velocity is zero

A

false

32
Q

true or false

a helicopter flying through the sky is an example of a projectile

A

false

33
Q

true or false

displacement can be thought of as the shortest distance from start to finish

A

true

34
Q

true or false

for a projectile, the initial velocity in the y-direction is always the same as the final velocity in the y-direction

A

false

35
Q

which force holds the protons together in the nucleus of an atom?

A

strong nuclear

36
Q

You have your seat belt on in the passenger seat of a car. The car suddenly accelerates. Which statement best describes your motion?

a) Your body will suddenly move forward with respect to the seat.
b) Your head will suddenly move forward with respect to your body
c) Both your body and head will move forward at the same rate
d) Your head and your body will suddenly move backwards with respect to the seat

A

d) Your head and your body will suddenly move backwards with respect to the seat

37
Q

True or false

one newton is equal to 1kg/mg/s

A

false

38
Q

True or false

If there is a net force acting on an object, then the motion of the object will change

A

true

39
Q

True or false

If the net force on an object is constant and the mass increases, then the acceleration decreases

A

true

40
Q

True or false

Newton’s third law states that for every action force, there is a simultaneous reaction force of lesser magnitude in the opposite direction

A

false

41
Q

What is the rate of acceleration due to gravity?

A

9.8 m/s^2

42
Q

Describe what it means for an object to have inertia

A

Inertia is the tendency of all objects to resist any change in motion.

Inertia causes a moving object to stay in motion at the same velocity (speed and direction) unless a force acts on it to change its speed or direction.

It also causes an object at rest to stay at rest.

43
Q

once a skydiver has accelerated to a constant speed, the skydiver is said to be travelling at

a) constant acceleration
b) terminal speed
c) max acceleration
d) final speed

A

b) terminal speed

44
Q

when a ball is dropping, it

a) continues to accelerate as it falls
b) slows down as it falls
c) travels at a constant speed as it falls
d) neither speeds up nor slows down as it falls

A

a) continues to accelerate as it falls

45
Q

compared to an object with a large cross-sectional area, an object with a small cross-sectional area will experience

a) less air resistance
b) more air resistance
c) the same amount of air resistance
d) negligible air resistance

A

a) less air resistance

46
Q

a coin and a feather of equal mass are dropped at the same time. Which will hit the ground first?

a) feather
b) coin
c) same time

A

b) coin

47
Q

you push on an object, but it does not move. Which force are you unable to overcome?

a) gravitational force
b) kinetic friction
c) static friction
d) normal force

A

c) static friction

48
Q

an object is given an initial push, is releases and slides along a surface. While it is sliding, kinetic friction will cause the object to:

a)maintain its speed
b) increase its speed
c) decrease its speed
d) conserve its speed

A

c) decrease its speed

49
Q

a book at rest on a table experiences a force of gravity downward and a force normal upward. This pair of forces is an example of:

a) Newtons 2nd law
b) Net force of zero
c) Frictional forces

A

b) Net force of zero

50
Q

if the mass on an object with a net force of 10N is increased, what will happen to its acceleration?

a) decrease
b) increase
c) stay the same
d) acceleration becomes 0

A

a) decrease

51
Q

true or false

an object experiencing a net force of zero must be moving at a constant velocity

A

false can be at rest too

52
Q

true or false

weight is measured in newtons

A

true

53
Q

true or false

an object experiencing a net force of 12N is accelerating

A

true

54
Q

true or false

energy can be defined as the ability to do work

A

true

55
Q

The type of thermal energy transfer that can occur in solids, liquids, and gases is
(a) radiation
(b) conduction
(c) convection
(d) all of the above

A

(b) conduction

56
Q

The amount of energy that must be added to a
substance to raise 1.0 kg of the substance by 1 °C is the substance’s
(a) temperature
(b) thermal energy
(c) specific heat capacity
(d) kinetic energy

A

(c) specific heat capacity

57
Q

what is 1J equivalent to in SI units?

A

1kg x m^2/s^2

58
Q

the process by which heat is circulated by air in a room:

A

convection

59
Q

the average kinetic energy of the particles of a substance is known as:

A

temperature

60
Q

the nuclear process that powers a nuclear power plant is called:

A

fission

61
Q

true or false

nuclear power plants do not emit greenhouse gases

A

true

62
Q

true or false

reversing the current in a wire also reverses the direction of the magnetic field

A

true

63
Q

true or false

one way a simple DC motor can be improved is to increase the number of splits in the split ring commutator

A

true

Physics 11 (30 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions