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physics 1st Sem, final exam

Total questions: 109

Worksheet time: 2hrs 55mins

Name
Class
Date
1.

Which of the following is not considered nonmatter

a)

heat

b)

light

c)

atoms

d)

magnetism

2.

What is a tested and proven concept of science but still being test?

a)

law

b)

hypothesis

c)

scientific fact

d)

none of these

3.

What is a"testable prediction"?

a)

theory

b)

law

c)

questioning

d)

hypothesis

4.

Einstein's concept of relativity is considered a?

a)

law

b)

hypothesis

c)

theory

d)

none of these

5.

A push or pull is considered what in physics?

a)

vector

b)

force

c)

velocity

d)

motion

6.

Magnitude and direction make ?

a)

vector

b)

force

c)

push and pull

d)

motion

7.

Force is measured what unit?

a)

grams

b)

vectors

c)

newtons

d)

force

8.

The forces upward on an object must be balanced by other forces acting downward to make the vector sum equal to zero

a)

Newton's laws of motion

b)

mechanical equilibrium

c)

vector rule

d)

none of these

9.

what is needed to change an objects state of motion

a)

energy

b)

vector

c)

force

d)

direction

10.

When an object isn’t moving, it is

a)

in balance

b)

in direction of a vector

c)

stationary

d)

equilibrium

11.

If two vectors pointing at each other of 100 N the other arrow a force of 30N what is the correct equation?

a)

100N + 30 N = 130N

b)

the force is 0 due to equilibrium

c)

100N - 30N = 70N

d)

30N -100N = -70N

12.

If a book is setting on your desk in front you how many forces are acting on the book?

a)

1

b)

2

c)

3

d)

4

13.

A gymnast is on the the"rings". The gymnast is using is using a force equal to?

a)

gravity

b)

magnitude

c)

weight

d)

none of these

14.

The direction from the tail to the head of a vector is?

a)

tension

b)

mechanical equilibrium

c)

magnitude

d)

tension

15.

When 2 perpendicular vectors that are equal in magnitude this is what rule?

a)

vector rule

b)

measurement of force rule

c)

magnitude rule

d)

none of these

16.

The measurement of a newton is defined as?

a)

F = m x a

b)

move 1 kilogram im meter

c)

amount of force to make an object move

d)

the ability to to get mechanical advantage

17.

Force equals __________________?

a)

density times acceleration

b)

mass times acceleration

c)

W = f x d

d)

F = distance x time

18.

A ball sitting on the ground is an example of which

Newton' law?

a)

Newton's 1st law

b)

Newton's 2nd law

c)

Newton's 3rd law

19.

What force could effect Newton's 1st law

a)

acceleration

b)

friction

c)

mass

d)

weight

20.

In physics if you double the mass you double the __________

of an object

a)

gravity pull

b)

weight

c)

force

d)

acceleration

21.

As you sit in your chair forces are applied to you . What Newton's law is occuring?

a)

1st law

b)

2nd law

c)

3rd law

d)

this example is not discussed by Newton's laws of motion

22.

If you are standing on a skateboard pushing on a wall and you move away from the wall, this what Newton's law?

a)

1st law

b)

2nd law

c)

3rd law

23.

Newton's cradle demonstrates the 2nd of motion.

a)

true

b)

false

24.

A rocket in space would continue to go in the same direction at the same speed.

a)

true

b)

false

25.

The formula for force is F = m x a. The 'm' stands for motion

a)

True

b)

false

26.

What unit is speed measured?

a)

newtons

b)

meters per second

c)

feet per second

d)

miles per hour

27.

The speed and direction of an object defines?

a)

velocity

b)

distance

c)

impulse

d)

momentum

28.

Define acceleration.

a)

the force of gravity

b)

pushing the gas pedal

c)

The rate at which velocity changes over time

29.

Velocity is a vector which means it has?

a)

speed and force

b)

magnitude and direction

c)

momentum impulse

30.

Moving by the force of gravity with no air resistance.

a)

freefall

b)

momentum

c)

acceleration

31.

A feather" floats" due to what physics concept?

a)

wind

b)

gravity

c)

air resistance

32.

Energy that is stored is kinetic energy.

a)

true

b)

false

33.

Energy can be created in a lab.

a)

true

b)

false

34.

What 0unit vis used to measure speed?

a)

newtons

b)

meters per second

c)

newton meters

d)

meters

35.

Velocity has magnitude and_______?

a)

force

b)

momentum

c)

direction

d)

energy

36.

What is acceleration?

a)

a change in velocity

b)

a change motion

c)

a form of energy

37.

An object under the force of gravity with no air resistance.

a)

gravity

b)

force

c)

freefall

d)

momentum

38.

A feather "floats" because of what physical condition.

a)

gravity

b)

air resistance

c)

acceleration

d)

none of these

39.

A force that opposes motion between two surfaces that are touching

a)

force

b)

surface tension

c)

opposing forces

d)

none of these

40.

Sliding friction requires less energy to move objects than rolling

a)

true

b)

false

41.

The greater the force = more the friction.

a)

true

b)

false

42.

Rolling friction produces greater amount of opposing force

a)

true

b)

false

43.

Oils and greases affect by?

a)

increasing friction

b)

decreasing friction

c)

maintaining friction

d)

not affecting friction

44.

Momentum is defined as?

a)

velocity in motion

b)

movement of matter

c)

mass in motion

d)

vector measurement

45.

If an object is moving it has?

a)

velocity

b)

mass

c)

momentum

d)

impulse

46.

Elastic and inelastic collisions refer to in physics as?

a)

collisions that creat energy

b)

If an object bounces or not at collision

c)

Objects that stretch due to force

d)

none of these

47.

The physics definition of impulse is?

a)

a constant flow of energy

b)

a constant pulse of energy

c)

a form of momentum that changes direction

d)

A change in momentum

48.

An inclined plane wrapped around a center plane is?

a)

wedge

b)

screw

c)

ramp

d)

pulley

49.
F = mass x ____
a)
force
b)
velocity
c)
acceleration
50.
What Unit do we Measure Force in? 
a)
Newtons
b)
Joules
c)
grams
d)
pounds
51.

given 20 N, 2 Kg, you can know a (acceleration) is

a)

20N/2 kg=10m/s/s

b)

20Nx2kg=40m/s/s

c)

2kg/20N=0.1m/s/s

d)

none of the above

52.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
53.

You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?

a)

60 N right

b)

10 N left

c)

65 N right

d)

50 N left

54.

What is the force on a 1000 kg elevator that is falling freely at 9.8 m/sec2

a)

102.04 N

b)

9,800 N

c)

980 N

d)

103 N

55.
What is the acceleration of a 50 kg object pushed with a force of 500 newtons?
a)
100 m/s2
b)
25,000 m/s2
c)
10 m/s2
d)
25 m/s2
56.
In which direction will the box accelerate?
a)
Up
b)
Down
c)
Left
d)
Right
57.
If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration?  (F=ma)
a)
The one with a mass of .78 kg will have the greatest acceleration.
b)
The one with a mass of .52 kg will have the greatest acceleration.
c)
They will both accelerate at the same rate.
58.
A 20 kg bike accelerates at 10 m/s2.  what was the force?
a)
25 Newtons
b)
20 Newtons
c)
200 Newtons
d)
10 Newtons
59.
Unit of mass
a)
m/s 2
b)
m/s
c)
newtons
d)
kg
60.
A force of 250 N is applied to an object that accelerates at a rate of 5 m/s2.  What is the mass of the object? To solve this problem you must do - 
a)
250 ÷ 5
b)
5 ÷ 250
c)
250 x 5
61.
A 5 kg block is pulled across a table by a net force of 32 N. Calculate the acceleration of the object. To solve this problem you must do - 
a)
32 ÷ 5
b)
5 ÷ 32
c)
32 x 5
62.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
63.
Which type of force(s) will cause a change in an object's motion?
a)
gravity
b)
zero net force
c)
balanced forces
d)
unbalanced forces
64.
What is the name for a push or pull?
a)
A movement
b)
A force
c)
Speed
d)
Density
65.
What is Newton's First Law
a)
F=ma
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion. 
d)
Friction 
66.
An automobile you are riding in suddenly stops, but you continue to go forward.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
67.
A car travels 300 km in 6 hours. What is the average speed of the car (in km/hr)?
a)
0.02 km/hr
b)
1,800 km/hr
c)
50 km/hr
d)
50 km
68.
What is the speed of a jet plane that flies 7200 km in 9 hours ( in km/hr)
a)
800 km/hr
b)
80 km/hr
c)
800 hrs
d)
64,800 km/hr
69.
A rocket is launched from the launch pad at a speed of 700 km/hr.  How far will the rocket have traveled after 1.0 hour?
a)
699 km
b)
700 km
c)
350 km
d)
700 hours
70.
What is the average speed of a walker who walks 500 m in 400 seconds?
a)
1.25 m/s
b)
100 m/s
c)
0.8 m/s
d)
200,000 m/s
71.
A bird flies at a speed of 4 m/s.  It flies for 2160 seconds from its nest to the field.  How much distance did the bird cover?
a)
540 meters
b)
8,640 meters
c)
2164 meters
d)
2156 meters
72.
Speed is equal to 
a)
Distance/Time
b)
Time/Distance
c)
Time x Distance
d)
Acceleration
73.

(Using Fnet=ma), What net force is required to accelerate a car at a rate of 2 m/s2 if the car has a mass of 3,000 kg?

a)

6,000 N

b)

1,500 N

c)

3,002 N

d)

2,998 N

74.

(Use Fnet=ma). What is the mass of a falling rock if it produces a force of 147 N? (Acceleration due to gravity = 9.8 m/s2)

a)

15 kg

b)

1,440.6 kg

c)

156.8 kg

d)

137.2 kg

75.

(Use Fnet=ma). Your parents' car has a mass of 2,000 kg. If your car produces a force of 5,000 N, at what rate will it accelerate?

a)

2.5 m/s2

b)

0.4 m/s2

c)

10,000,000 m/s2

d)

3,000 m/s2

76.

(Use Fnet=ma). Use the diagram to determine the net force, assume the object is accelerating at a rate of 2 m/s2 and determine the mass of the object.

a)

2 kg

b)

4 kg

c)

6 kg

d)

8 kg

77.
Since Force = Mass * Acceleration, how would you manipulate the equation to solve for mass?
a)
Divide both sides of the equation by Mass
b)
Divide both sides of the equation by force
c)
Divide both sides of the equation by acceleration
d)
Equations cannot be manipulated
78.

a measure of the change in velocity during a period of time

a)

velocity

b)

acceleration

c)

speed

d)

vector

79.

Newton’s law states that for every action, there is an ________ reaction.

a)

unequal and opposite

b)

equal and similar

c)

stronger and opposite

d)

equal and opposite

80.

When a cannon fires a cannonball we observe Newton's third law. Which is the reaction force?

a)

The cannon moving forward

b)

The cannon moving backwards

c)

The cannonball moving backwards

d)

The cannonball moving forward

81.
Why is the net force 0 in the image?
a)
Because the elephants are the same size
b)
Because they are both pulling the same amount of force in opposite directions
c)
Because they are elephants
d)
Because they are pulling away from each other.
82.

This picture shows .............

a)

Newton 2nd law of motion

b)

Newton 3rd law of motion

c)

Newton 1st law of motion

d)

I don't know

83.
Work is measured in... 
a)
Kilograms
b)
m/s
c)
Newtons
d)
Joules 
84.
Work of 2000 J is required to push an object 1.5 km. What is the force?
a)
2.5 N
b)
1.3 N
c)
1.6 N
d)
12 N
85.

How many joules of work are done against a cart when a force of 50 N pushes it 1 kilometer away?

a)

70000 J

b)

50000 J

c)

5500 J

d)

6600 J

86.

A student needs 10 Newtons of force to lift a box to the top of a 2 meter shelf. How much work do they do?

a)

12 J

b)

8 J

c)

20 J

d)

5 J

87.

If the marble had a mass of 0.3kg and the hill was 2.3 m tall, how much potential energy did it have at the top of the ramp?

a)

2.3 J

b)

0.23 J

c)

6.9 J

d)

5.2 J

88.

What is the correct unit for energy?

a)

meters (m)

b)

kilogram meters per second (kg m/s)

c)

Newtons (N)

d)

Joules (J)

89.
A leopard with a mass of 55.00 kg climbs 12.0 m up a tree. What is its GPE?
a)
6,468 J
b)
660 J
c)
4.58 J
d)
0.22 J
90.
Roger Federer’s tennis ball has a mass of 0.3 kg. If he holds the ball above the ground at a height of 2.0 m to serve, what is its gravitational potential energy (GPE)?
a)
5.88 J
b)
0.6 J
c)
6.67 J
d)
0.15 J
91.
Centripetal acceleration acts towards the ___________ of the circular motion
a)
center
b)
circumference
c)
outside
d)
radius
92.

The purple ball is rolling counterclockwise around a track with uniform circular motion. Which vector represents the direction of the acceleration of the ball?

a)

A

b)

B

c)

C

d)

D

93.

An object with uniform circular motion, has constant _?_ but constantly changing _?_.

a)

speed, acceleration

b)

speed, direction

c)

acceleration, speed

d)

acceleration, velocity

94.

Any force or acceleration described as "centripetal" will always point _?_.

a)

in the direction the object is moving

b)

tangential to the circle

c)

towards the center of the circle around which an object is moving

d)

towards the outer edge of the circle around which an object is moving

95.

What is the symbol for Potassium

a)

P

b)

Po

c)

K

d)

Pt

96.

What is the symbol for Sodium

a)

S

b)

Au

c)

So

d)

Na

97.
What is the name of this element?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
98.
What is the name of this element?
a)
Lithium
b)
Boron
c)
Carbon
d)
Neon
99.
What is the mass number of this atom?
a)
1
b)
3
c)
4
d)
7
100.
How many valence electrons?
a)
2
b)
3
c)
5
d)
10
101.

The innermost energy level has a maximum of how many electrons?

a)

1

b)

2

c)

6

d)

8

102.

How many dots would you put around carbon, a group 14 element?

a)

4

b)

6

c)

8

d)

18

103.

This could be the dot diagram of

a)

Mg

b)

Cl

c)

C

d)

O

104.

This is a correct dot diagram for neon (Ne)

a)

true

b)

false

105.

How many valance electrons in Ne?

a)

2

b)

10

c)

7

d)

nonev of these

106.

The dot diagram has how many valance electrons in phosphorus ?

a)

2

b)

15

c)

6

d)

5

107.

How many electrons in silver?

a)

42

b)

57

c)

47

d)

none of these

108.

Archimedes made his famous discovery using the physics concept of

a)

phase of matter

b)

density

c)

volume

d)

knowledge of periodic table

109.

a meniscus refers to ?

a)

mass

b)

matter

c)

measurement

d)

metrics