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Physics 1 Final Exam Review

Total questions: 65

Worksheet time: 1hrs 12mins

Name
Class
Date
1.

An object moving East begins to slow down as it approaches a traffic light. Make a statement concerning its acceleration.

a)

The car is decelerating, and its acceleration is positive.

b)

The car is decelerating and its acceleration is negative.

c)

The acceleration is zero.

d)

A statement cannot be made using the information given.

2.

Which is a vector quantity?

a)

distance

b)

speed

c)

mass

d)

force

3.

Which line on the velocity graph shows an object moving at a constant velocity?

a)

A

b)

B

c)

C

d)

D

4.

The diagram to the right shows a ball projected horizontally with an initial velocity of 20 m/s east, off a cliff 100 m high. (Neglect air resistance) During the flight of the ball, what is the direction of its vertical velocity?

a)

downward

b)

upward

c)

westward

d)

eastward

5.

For general projectile motion with no air resistance, the horizontal component of a projectile’s acceleration _____.

a)

continuously increases

b)

remains a non-zero constant

c)

first decreases then increases

d)

remains zero

6.

Action-reaction forces from Newton’s Third Law _____.

a)

sometimes act on the same object

b)

always act on the same object

c)

always act on different objects

d)

may form right angles

7.

When the rocket engines on a spaceship are suddenly turned off, while traveling in empty space where there are no external forces, the spaceship will _____.

a)

stop immediately

b)

slowly slow down, and then stop

c)

go faster and faster

d)

move with constant speed

8.

In the diagram to the right, a 10 kg block is at rest on a plane inclined at 15°15\degree   to the horizontal. As the angle of the incline is increased to 30°30\degree  , the weight of the block will _____.

a)

decrease

b)

increase

c)

remain the same

d)

cannot be determined

9.

A car moves with a constant speed in a counter clockwise direction around a circular path of radius r, as represented in the diagram to the right. When the car is in the position shown, its acceleration is directed toward the _____.

a)

north

b)

west

c)

south

d)

east

10.

What is the only centripetal force when a car goes around a flat highway curve?

a)

normal

b)

tension

c)

gravity

d)

friction

11.

An object moves in a horizontal circular path at a constant speed. Compare the direction of the object’s centripetal force and centripetal acceleration vectors.

a)

The vectors point in opposite directions.

b)

The vectors point in the same direction.

c)

The vectors are perpendicular.

d)

The question is meaningless, since the acceleration is zero.

12.

Two objects attract each other gravitationally.  If the distance between their centers is tripled the gravitational force _____.

a)

is 3 times greater

b)

is 9 times greater

c)

is cut in one-third

d)

is cut in one-ninth

13.

Two objects, with mass m1m_1  and m2m_2  , are at a distance "r" apart. The mass of both objects is doubled and the distance quadruples. What is the change in the gravitational force?

a)

It is cut in fourth.

b)

It is cut in half.

c)

It remains the same.

d)

It is quadrupled.

14.

If the net work done on an object is negative, then the object's kinetic energy _____.

a)

increases

b)

decreases

c)

is zero

d)

remains the same

15.

The quantity mgy is _____.

a)

the kinetic energy of an object

b)

the gravitational potential energy of an object

c)

the elastic potential energy of an object

d)

the work done on an object by the force

16.

A point on a wheel rotating at 4.1 m/s is located 0.25 m from the axis. What is the centripetal acceleration of the object?

a)

88.8 ms288.8\ \frac{m}{s^2}  

b)

44.6 ms244.6\ \frac{m}{s^2}  

c)

4.7 ms24.7\ \frac{m}{s^2}  

d)

1.1 ms21.1\ \frac{m}{s^2}  

17.

A ball is thrown horizontally with an initial velocity of 12 m/s from the top of a tower 45 m high. What is the initial horizontal velocity of the ball?

a)

0 m/s

b)

8.5 m/s

c)

12 m/s

d)

27.2 m/s

18.

A cart that starts at rest experiences a constant acceleration of 1.5 ms21.5\ \frac{m}{s^2}  . How far does the cart need to travel to reach a speed of 12.0 m/s?

a)

4 m

b)

16 m

c)

48 m

d)

72 m

19.

When two electric charges that share the same sign are near each other, they will __________________.

a)

Have no effect on each other

b)

Repel each other

c)

attract each other

d)

annihilate each other

20.

Which particle will determine the strength of an electric charge?

a)

Proton

b)

Neutron

c)

Atom

d)

Electron

21.

When charging occurs due to two objects being in contact with each other, this is called _____________________.

a)

Charging by induction

b)

charging by friction

c)

charging by transfer

d)

charging by conduction

22.

A 9V battery is connected to a circuit. The current flowing through the circuit is 2A, what is the resistance in the circuit?

a)

4.5 Joules

b)

18 Joules

c)

4.5 Amps

d)

18 Amps

23.

A circuit with a 6.0 volt battery attached contains three resistors of 25.0 Ohms, 30.0 Ohms, and 40.0 Ohms connected in series. What is the current in the circuit?

a)

0.085A

b)

1.4A

c)

0.065A

d)

1.240A

24.

What happens to a magnet when it is broken into two separate pieces?

a)

You will have two magnets, each with one magnetic pole

b)

You will have two pieces of metal with no magnetic properties

c)

You will have two magnets, each with two opposite magnetic poles

d)

The larger piece will retain the magnetism, but the smaller piece will not

25.

A longitudinal wave travels _____ to the direction of the wave's motion.

a)

at various angles

b)

parallel

c)

at a right angle

d)

perpendicular

26.

A wave is a disturbance that transports which of the following?

a)

particles

b)

water

c)

light

d)

energy

27.

Complete the sentence:


______________ is the number of crests of a wave that passes a single point in each second.

a)

Amplitude

b)

Frequency

c)

Wavelength

d)

Period

28.

What is the most common unit of measurement for sound level?

a)

Decibel

b)

Displacement

c)

Angstrom

d)

Pitch

29.

What is the wavelength of a wave with a frequency of 800 Hz that is moving through sea water at 1,440 m/s?

a)

2.1 m

b)

4.2 m

c)

3.5 m

d)

1.8 m

30.

What is the change in frequency of a wave due to the relative motion of the observer?

a)

The sound shift

b)

The Feynman effect

c)

The Casimir effect

d)

The Doppler effect

31.

If you see something that is the color black, you are really seeing what?

a)

All of the visible light that strikes the object being reflected

b)

Most of the visible light that strikes the object is being reflected

c)

All of the visible light that strikes the object is being absorbed

d)

Most of the visible light that strikes the object is being absorbed

32.

What is the frequency of light with a wavelength of 7.00 x 10-7 m?

a)

3.4 X 1014 Hz

b)

2.1 X 1014 Hz

c)

5.4 X 1014 Hz

d)

4.3 X 1014 Hz

33.

Describe the motion

a)

Slow to fast; Negative direction

b)

Fast to slow; Negative direction

c)

Fast to slow; Positive direction

d)

Slow to fast; Positive direction

34.

from 3rd second to 5th second, the object is

a)

moving at a constant speed

b)

speeding up

c)

not moving

d)

slowing down

35.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
36.

What is happening at E?

a)

Stationary

b)

Accelerating

c)

Fast steady speed; moving away from the starting position

d)

Steady speed; returning to start position

37.

From t=1.0 second to t=3.0 seconds, the object is

a)

moving at a constant speed

b)

speeding up

c)

not moving

d)

slowing down

38.
What is the average speed of the person during the first 5 seconds?
a)
0 m/s
b)
1 m/s 
c)
3 m/s
d)
6 m/s 
39.

The car starts from rest and accelerates uniformly to reach a maximum speed of 69.44 ms-1 in 3.8 s. What is the acceleration of the car?

a)

9.3 ms-2

b)

18.3 ms-2

c)

24.43 ms-2

d)

20 ms-2

40.
If these boys are pulling with the same amount of force.  What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
41.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
42.
What is a force that opposes motion between two surfaces?
a)
friction
b)
acceleration
c)
velocity
d)
motion
43.
A free falling objects falls under the influence of 
a)
force of air
b)
force of gravity
c)
force of resistance
d)
force of 
44.
Do free falling objects move at constant velocity or do they accelerate?
a)
Falling objects accelerate at -9.8 m/s2
b)
Falling object move at constant velocity
c)
Falling objects accelerate at 100 m/s2
d)
It depends on the mass: heavy objects accelerate, light objects do not
45.
What values are always known for a free falling object?
a)
vi = 0 m/s
 a = -9.8 m/s2
b)
vi = -9.8 m/s
 a = -9.8 m/s2
c)
vi = -9.8 m/s
 a = 0 m/s2
d)
d = -9.8 m
vi = 0 m/s
46.
More massive objects will only fall faster if there is not air resistance.
a)
True
b)
False
47.
Energy that is stored is called...
a)
Kinetic
b)
Potential 
48.
How much work is being done with 200 N of force over 426 meters?
a)
85,200 J
b)
45,620 J
c)
90,480 J
d)
62,329 J
49.
A force exerted over a distance to move an object is ______________________.
a)
power
b)
work
c)
momentum
d)
Watt
50.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
51.
"Energy can be transformed from one form into another or transformed from one region or another, but energy cannot be created or destroyed."
Which law is this?
a)
Law of Conservation of Mass
b)
Newton's Second Law
c)
Law of Conservation of Energy
d)
Newton's Third Law
52.
What is the average power generated by Peter Quill aka Star Lord (m = 100 kg) running up a flight of stairs rising vertically 6 .0 m in 5.0 s?
a)
0.03 W
b)
817 W
c)
1176 W
d)
1993 W
53.
At the start of a ski jump, a skier begins at rest at the top of a hill. What types of energies are present?
a)
Kinetic
b)
Gravitational
c)
Kinetic & Gravitational
d)
Gravitational & Internal
54.
When the velocity of an object is doubled, its momentum _______.
a)
remains unchanged in accord with the conservation of momentum.
b)
doubles
c)
quadruples
d)
decreases
55.
The total momentum before a collision is _________ the total momentum after a collision.
a)
equal to 
b)
less than 
c)
more than
d)
It depends on the type of collision
56.

An impulse is equivalent to

a)

the change in mass of an object

b)

the change in volume of an object

c)

a force applied to an object for a period of time

d)

the initial momentum of a moving object

57.
What factors best reduce the force of an impact on an object?
a)
Weight, Speed, and Mass
b)
Mass, Time of impact, and Direction of force
58.
Force x time = impulse
this means what?
a)
If you extend the time of impact it reduces the amount of force that an object feels all at once
b)
If you extend the time of impact if increases the amount of force that an object feels all at once
59.
Two objects of the same mass collide with each other.  The second object is at rest and the first is moving at 5 m/s North before the collision.  After the collision, the first mass is at rest and the second mass continues at 5 m/s North. 
The type of collision represented by these two masses is
a)
Inelastic
b)
Explosive
c)
Elastic
60.
Heather noticed a collision outside the coffee shop where two cars collided and stuck together.  What type of collision did she observe?
a)
Elastic
b)
Explosive
c)
 Inelastic
61.
Centripetal force is...
a)
the resultant force acting on a body moving at constant speed in a circle 
b)
the outwards force acting on a body moving at constant speed in a circle 
62.
Centripetal acceleration acts towards the ___________ of the circular motion
a)
centre
b)
circumference
63.
A horse gallops around a circular arena.  The centripetal force on the horse is ___.
a)
directed outward
b)
tension
c)
directed toward the center of the arena
d)
9.8 N
64.
Which represents the acceleration of the ball?
a)
A
b)
B
c)
C
d)
D
65.
The velocity is always _____ to the line of a circle. 
a)
outwards
b)
towards the center
c)
tangent
d)
faster