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Conceptual Physics Midterm (Spring 2022)

Total questions: 88

Worksheet time: 1hrs 21mins

Name
Class
Date
1.
Variable that the SCIENTIST CHANGES or TESTS.
a)
Control Variable
b)
Variable
c)
Dependent Variable
d)
Independent Variable
2.
Variable that is MEASURED or OBSERVED; it DEPENDS on the independent variable.
a)
Control Variable
b)
Variable
c)
Dependent Variable
d)
Independent Variable
3.
Variable that the scientist keeps CONSTANT or the SAME. 
a)
Control Variable
b)
Variable
c)
Dependent Variable
d)
Independent Variable
4.
Mrs. LaRue wants to know which brand of paper towels is the strongest.  In this experiment, what is the INDEPENDENT variable? 
a)
Stength 
b)
Brand of paper towel
c)
Weight
d)
Environment
5.
Mrs. LaRue wants to know which brand of paper towels is the strongest.  In this experiment, what is the DEPENDENT variable? 
a)
Stength 
b)
Brand of paper towel
c)
Environment
d)
Weight
6.

Choose the correctly written hypothesis for "What is the effect of putting Pam Cooking Spray on the bottom of a sled?"

a)

I think the sled will slide faster.

b)

If I put Pam Cooking Spray on the bottom of my sled, then I will win the race."

c)

If I put Pam Cooking Spray on the bottom of my sled, then I will slide faster.

7.
The leaves on the plant are turning brown.
a)
Qualitative
b)
Quantitative
c)
Both
d)
Neither
8.
The plant has grown 4 cm since yesterday.
a)
Qualitative
b)
Quantitative
c)
Both
d)
Neither
9.
A claim is ______________________________.
a)
a kind of shellfish often used in chowder. 
b)
a fact.
c)
a statement or conclusion that answers the original question or problem
d)
a bad thing to make about something.
10.
Evidence is ___________________
a)
A statement or conclusion that answers a question
b)
Scientific data that supports the claim
c)
A justification that connects the claim to the evidence
d)
Not vital when using an argument
11.

Reasoning is __________________.

a)

the answer of the original question/problem

b)

Scientific data that supports the claim

c)

An explanation that connects the evidence to the claim

12.
What is the name of the units that we measure force in?
a)
Einsteins 
b)
Newtons
c)
Kg
d)
Metres
13.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
14.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
15.

A ____________ is a push or a pull on an object.

a)

friction

b)

force

c)

magnet

d)

gravity

16.

Resistance to an unbalanced force

a)

Mass

b)

Resistance

c)

Inertia

d)

Force

17.

A measure of how much matter is present in a substance

a)

Weight

b)

Mass

c)

Force

d)

Inertia

18.

Distance/Time

a)

Average Speed

b)

Average Velocity

c)

Average Acceleration

d)

Average Travel

19.

Displacement/Time

a)

Average Speed

b)

Average Velocity

c)

Average Acceleration

d)

Average Travel

20.

Change is velocity/Time

a)

Average Speed

b)

Average Velocity

c)

Average Acceleration

d)

Average Travel

21.

Objects in motion tend to stay in motion

a)

Newtons 1st Law

b)

Newtons 2nd Law

c)

Newtons 3rd Law

d)

None

22.

Force= mass x Acceleration

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rd law

d)

None

23.

For every action there is an equal and opposite reaction

a)

Newtons 1st Law

b)

Newtons 2nd Law

c)

Newtons 3rd Law

d)

None

24.

what is the net force

a)

17N

b)

3N <-----

c)

3N------>

d)

10N ------->

25.

Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate?

a)

20 m/s2

b)

2 m/s2

c)

0.5 m/s2

d)

120 N

26.

An evil ewok threw a rock with a force of 24.6N and an acceleration of 6m/s2 at an innocent stormtrooper. What was the rocks mass?

a)

4Kg

b)

41kg

c)

4.1kg

d)

46kg

27.

True or False. 20,000 N= 20,000 kg ⋅ m/s2

a)

True

b)

False

28.

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

29.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
30.
How can friction be reduced?
a)
reduce the force acting between the 2 surfaces
b)
reduce the roughness of the 2 surfaces coming in contact
c)
use wax, grease or oil
d)
all of the above are ways of reducing friction
31.
A type of friction that occurs when air pushes against a moving object causing it to decelerate.
a)
surface area
b)
air resistance
c)
velocity
d)
gravity 
32.
The momentum of an object depends upon the object's ___________&_____________.  
a)
size and shape
b)
mass and speed
c)
mass and veloctiy
d)
mass and energy
33.

The equation to calculate momentum is

a)

p = m x v

b)

p = 1/2 m x v2

c)

p = m x g x h

d)

p = m x g

34.

What is the unit for momentum?

a)

m/sec

b)

kg/sec

c)

kg/m

d)

kg x m/sec

35.

What is the unit for velocity?

a)

m/sec

b)

kg/sec

c)

kg/m

d)

kg x m/sec

36.
What is the unit for mass?
a)
m/sec
b)
kg/sec
c)
kg
d)
kg m/sec
37.
A 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball. 
a)
55 kg*m/s
b)
100 kg*m/s
c)
250 kg*m/s
d)
500 kg*m/s
38.

Newton's Universal Law of Gravitation explained about...

a)

Gravitational force

b)

Magnetic force

c)

Centripetal force

39.

What is the value of gravitation constant...

a)

3×108 ms−13\times10^8\ ms^{-1}

b)

6.67 ×10−11 Nm2kg−26.67\ \times10^{-11}\ Nm^2kg^{-2}

c)

6.63×10−9 Nm26.63\times10^{-9\ }Nm^2

40.

what is the factors that affect gravitational force

a)

mass, distance

b)

speed, distance

c)

momentum, mass

41.

what is the relationship between mass of object and distance between objects..

a)

mass increase, gravitational force increase

b)

mass increase, gravitational force decrease

c)

mass decrease, gravitational force increase

42.

A direct relationship between two parts of an equation means:

a)

One part doesn't beat around the bush when it wants to address something sensitive between the two

b)

One part tells the other where to stand, how to use their body language, and deliver lines for a scene to elicit the proper reaction from audiences

c)

If one increases in value, the other decreases in value

d)

If one increases in value, the other increases in value

43.

A inversely proportional relationship between two parts of an equation means:

a)

One part grabs the top part of a halfpipe and stands upside down on a skateboard or snowboard

b)

One part is quiet, kinda keeps to themselves, isn't really outgoing to socialize with others, but is okay with it all and is more comfortable in smaller group settings.

c)

If one increases in value, the other decreases in value

d)

If one increases in value, the other increases in value

44.

Which is the formula for Newton's Law of Universal Gravitation?

a)

F = G * m1m2 / r

b)

F = G * m1m2 / r2

c)

F = G * m1m2 / 2r

d)

F = m1m2 / 2r

45.

Which two particles are attracted to each other?

a)

Two neutrons

b)

A proton and an electron

c)

Two protons

d)

An electron and a neutron

46.

A repulsive force exists between which two particles?

a)

Two neutrons

b)

An electron and a neutron

c)

An electron and a proton

d)

Two protons

47.

As two oppositely charged particles approach each other, what happens to the electrical force between them?

a)

The attractive force increases

b)

The magnitude of the electric force decreases

c)

The repulsive force increases

d)

The magnitude of their charges increases

48.

A balloon is rubbed on a student's head. What occurs because of this?

a)

Charged particles on the balloon are destroyed

b)

Positively charged particles move from head to balloon

c)

Charged particles from the balloon are released into the air

d)

Negatively charged particles move from head to balloon

49.
When distance increases, electrostatic force ____________; we call this relationship ____________ proportional
a)
decreases;directly
b)
decreases;inversely
c)
increases;inversely
d)
increases;directly
50.

Which is the value of the constant in Coulomb's equation?

a)

k = 9·10-9

b)

k = 9.8

c)

k = 6.67·10-11

d)

k = 9 ·109

51.

The Coulomb is the unit for:

a)

Charge

b)

Force

c)

Distance

d)

Mass

52.
Planets orbit the Sun in a shape called a(n)
a)
circle
b)
ellipse
c)
focus
d)
perihelion
53.
Where is the planet moving faster
a)
Position A to B
b)
Position B to C
c)
Position H to I
d)
Position I to J
54.
What is true about the area between points A, B and the Sun, and the area between points H, I and the Sun?
a)
The area between A, B and the Sun is the largest.
b)
The area between H, I and the Sun is the largest
c)
Both areas are equal in size
d)
There is not enough information to determine the areas
55.
__________ is stored energy. 
a)
Potential
b)
Kinetic
56.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
57.

When a pendulum swings, at which point is kinetic energy the greatest?

a)

1

b)

2

c)

3

d)

when watching TV

58.

Conservation of energy means that energy cannot be ________ or ________, but can move and be changed from one form to another.

a)

created, destroyed

b)

gravity, force

c)

heat, created

d)

Luke, Baby Yoda

59.

A mass has a momentum of 50 kg*m/s, when its velocity doubles what happens to its momentum?

a)

The momentum doubles.

b)

The momentum quadruples.

c)

The momentum is halved.

d)

The momentum stays the same.

60.

A projectile of mass 1 kilogram traveling at 9 meters per second collides with another projectile of mass 2 kilograms traveling at 6 meters per second in the same direction. If the projectiles "stick" together after their collision, what is their velocity after colliding? m1v1 + m2v2 (before) = (m1 + m2) vfinal

a)

7 m/s

b)

8 m/s

c)

7.5 m/s

d)

9 m/s

61.

According to Coulomb's Law, when the distance increases, the electrostatic force ____________.

a)

increases

b)

decreases

c)

remains unchanged

d)

has no relationship to distance

62.

What happens to the force between two charged objects when you double the distance between them?

a)

it doubles

b)

it is cut in half

c)

it quadruples

d)

it is cut by 1/4

63.

If one of the charges doubles, what happens to the force?

a)

it doubles

b)

it gets cut in half

c)

it quadruples

d)

it is cut by 1/4

64.

The variable "r" in Coulomb's Law would have what units?

a)

Joules

b)

Coulombs

c)

Newtons

d)

Meters

65.

What does "r" measure?

a)

the distance between the two charged objects

b)

the amount of charge carried by the objects

c)

the amount of force between two charged objects

d)

the constant value for forces between the objects

66.

What does Fe stand for?

a)

the electrostatic force

b)

the symbol for iron

c)

the constant for the charges

d)

the charges of the particles

67.

What will be the units of F (or Fe)?

a)

Newtons

b)

Meters

c)

Coulombs

d)

Joules

68.

What does q measure?

a)

the distance between the two charged objects

b)

the amount of charge carried by the object

c)

the amount of force between two charged objects

69.

5 x 10-6 and 8 x 10-6 charges are 8 m apart. What is the force between them?

Fe = K (q1 x q2) / r2 ; k = 9 x 109

a)

5.625 x 10-3 N

b)

5.625 x 10-9 N

c)

4.5 x 1010 N

d)

4.5 x 10-10 N

70.

Ms Pippin rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?

a)

The balloons will repel each other.

b)

The balloons will attract each other.

c)

The balloons will become positively (+) charged.

d)

The balloons will pop.

71.

The difference between attraction and repulsion is that to attract is to pull something closer and repel is to push something away.

a)

True

b)

False

72.
If a substance has a higher number of electrons than protons on its surface, what type of charge does it have?
a)
A positive charge.
b)
A negative charge.
c)
A neutral charge
d)
No charge at all
73.
Electrical charge built up on the surface of an object is called _________________.
a)
static electricity
b)
current electricity
c)
lightning
d)
electrons
74.

During a lab a balloon was rubbed with a wooly fabric. This is an example of which type of charging?

a)

conduction

b)

friction

c)

induction

75.

What is the major difference between static electricity and current electricity?

a)

Current electricity involves a continuous flow of elecrons; static electricity is a sudden transfer of protons

b)

Current electricity can be deadly; static electricity is almost always safe

c)

In current electricity, there's a single transfer of electrons; in static electricity, there's a steady flow of electrons

d)

Current electricity involves a flow of electrons; static electricity involves a single transfer of electrons

76.
A perfect circle has an eccentricity of ______.
a)
0
b)
.99
c)
1
d)
2
77.
Which diagram shows a planet with the least eccentric orbit?
a)
1
b)
2
c)
3
d)
4
78.
What is the maximum eccentricity an ellipse can be?
a)
0
b)
.5
c)
1
d)
42
79.

Calculate the eccentricity for the following orbit.  e = d / L

a)
1.6
b)
0.8
c)
0.6
d)
1.2
80.
What is scientific notation?
a)
A long way to write really short  numbers
b)
A short way to write really long numbers
c)
I don't know...
d)
None of the above
81.
UNDERSTANDING
If the exponent is a negative number...
a)
you will get a large number
b)
you will get a small number
82.
Which of the following is correct scientific notation?
a)
20.35 x 104
b)
.2035 x 104
c)
2035 4
d)
2.035 x 10 4
83.
How would you write 564,000,000 in scientific notation?
a)
5.64 x 10-7
b)
5.64 x 106
c)
5.64 x 108
d)
56.4 x 107
84.
How would you write 0.0005 in scientific notation?
a)
50 x 105
b)
5 x 10-4
c)
5 x 103
d)
.5 x 10-3
85.

Give the sum of (8.7 x 105) + (7.32 x 107) in scientific notation

a)

16.02 x 107

b)

7.407 x 105

c)

7.407 x 107

d)

1.602 x 107

86.

Give the sum of (5.7 x 10-7) + (3.23 x 10-5)

a)

1.193 x 10-12

b)

3.287 x 10-5

c)

3.317 x 10-12

d)

5.53 x 10-2

87.
What is the simplified version of
a)
3.9 x 106
b)
4 x 1020
c)
4 x 106
d)
3.9 x 1020
88.
Multiply:
(9.4 x 106)(3.2 x 105)
a)
30.08 x 1011
b)
3.8 x 101
c)
3.008 x 1012
d)
2.9375 x 101

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