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Basic Physics Midterm Exam

Total questions: 65

Worksheet time: 42mins

Name
Class
Date
1.

Which of the following is a physical quantity that has a magnitude but no direction?

a)

Vector

b)

Frame of reference

c)

Resultant

d)

Scalar

2.

Which of the following shows an accurate but not precise data

a)
b)
c)
d)
3.

Which of the following shows a precise but not accurate data?

a)
b)
c)
d)
4.

Challenging Question:

1 cm2 = _____m2

a)

0.1

b)

0.01

c)

0.001

d)

0.0001

5.

85 dm = _____________________ m

a)

0.85

b)

8.5

c)

850

d)

8,500

6.

17,478 ml = __________________ L

a)

1,747.8

b)

174.78

c)

17.478

d)

17,478,000

7.
What happens to the velocity of a ball as it is dropped off a cliff? 
a)
It decreases at a uniform rate 
b)
It increases at a uniform rate 
c)
It is constant 
d)
It increases at a non-uniform rate
8.
Which of the following describes distance and displacement correctly?
a)
The blue arrow shows distance and the orange arrows show displacement
b)
The blue arrow shows displacement and the orange arrows show distance
c)
Both arrows show distance only
d)
Both arrows show distance and displacement
9.

What unit of measurement would you use to measure the length of an ant?

a)

millimeters

b)

grams

c)

kilograms

10.

What unit of measurement would you use to measure the mass of a postage stamp?

a)

millimeters

b)

grams

11.

What unit of measurement would you use to measure the volume of a large jug of milk?

a)

grams

b)

liters

c)

kilograms

12.

Which cart has the most Gravitational Potential Energy?

a)
b)
c)
d)
13.
Which of the following is an area of physics that studies motion and its causes
a)
thermodynamics
b)
mechanics
c)
quantum mechanics
d)
optics
14.
Listening to your favorite radio station involves which area of physics?
a)
optics
b)
thermodynamics
c)
vibrations and wave phenomena
d)
relativity
15.
A baker makes a loaf of bread. Identify the area of physics that this involves
a)
optics
b)
thermodynamics
c)
mechanics
d)
relativity
16.
Why do physicists use models?
a)
to explain the complex features of simple phenomena
b)
to describe all aspects of a phenomenon
c)
to explain the basic features of complex phenomena
d)
to describe all of reality
17.
What two dimensions, in addition to mass, are commonly used by physicists to derive additional measurements?
a)
length and width
b)
area and mass
c)
length and time
d)
velocity and time
18.
The SI base unit used to measure mass is the 
a)
meter
b)
kilometer
c)
gram
d)
kilogram
19.
The SI base unit for time is
a)
1 day
b)
1 hour
c)
1 minute
d)
1 second
20.
How does a scientist reduce the frequency of human error and minimize a lack of accuracy?
a)
Take repeated measurements
b)
Use the same method of measurement
c)
maintain instruments in good working order
d)
all of the above
21.
Five darts strike near the center of a target. The dart thrower is
a)
accurate
b)
precise
c)
both accurate and precise
d)
neither accurate nor precise
22.
The greek letter Δ indicates a(n):
a)
difference or change
b)
sum or total
c)
direct proportion
d)
inverse proportion
23.

Momentum is the product of mass and velocity. Which of the following can be used as the unit of momentum?

a)

kgm/s2

b)

Nm

c)

Ns-1

d)

kgm/s

24.

What is the SI unit of force?

a)

meter

b)

newton

c)

second

d)

watt

25.

Work is the product of force and displacement. What is the SI unit of work?

a)

Nm-1

b)

N

c)

joule

d)

watt

26.
A unit of length equal to 12 inches...
a)
foot
b)
inch
c)
mile
d)
yard
27.

How many millimeter in a centimeter?

a)

1,000

b)

100

c)

10

28.

How many meters in a kilometer?

a)

1,000

b)

100

c)

10

29.

How many grams in a kilogram?

a)

1,000

b)

100

c)

10

30.

How many cups in a gallon?

a)

2

b)

4

c)

8

d)

16

31.
Is this a scalar quantity or a vector quantity?
A deer running 15 meters per second due west
a)
Scalar
b)
Vector
32.
If a boomerang is thrown 20 m in a straight line and returns exactly to the spot it was thrown what is its displacement?
a)
20m
b)
40m
c)
0m
d)
-20m
33.
A car moved 60 km East and 90 km West. What is the distance it traveled?
a)
30 km, West
b)
60 km. East
c)
90 km
d)
150 km
34.
How do you combine vectors if they are in opposite directions?
a)
Add
b)
Subtract
c)
Pythagorean Theorem
d)
Use trigonometry
35.

The horizontal value of a vector, such as the range

a)

Resultant vector

b)

Component vector

c)

x-component

d)

y-component

36.
Slamming on the brakes in a moving car makes a passenger move forward against his or her seat belt because
a)
the passenger has the inertia to keep moving forward
b)
the passenger is being pushed by the seats of the car
c)
the passenger is better able to stop themselves in this manner
d)
the passenger has an equal and opposite force supporting their weight
37.
How long will an object remain at rest, according to Newton's First Law of Motion?
a)
it can't rest
b)
until noon
c)
until an unbalanced force occurs
d)
as long as there are unbalanced forces acting on it 
38.
For every _______ there is an equal and opposite ________. 
a)
reaction, action
b)
action, action
c)
reaction, reaction
d)
action, reaction
39.
Why is it harder to push a van filled with bowling balls than it is to push a van with basketballs?
a)
The mass of the car is greater than the mass of the basketballs
b)
The mass of the bowling balls is greater than the mass of the basketballs
c)
The van with the basketballs is bigger than the van with the bowling balls
d)
It should be equally as hard to push the two vans
40.
You are holding a bowl of hot soup while standing in the kitchen. As you begin to move, the soup spills out of the bowl. Upon reflection you realize that
a)
the soup spilled because of air resistance
b)
if you had traveled faster this wouldn't have happened
c)
the soup wanted to stay where it was, but you moved the bowl
d)
the soup and the bowl act as one body with the same velocity
41.
Which of these is an example of Newton's Second Law, F=ma
a)
a tug of war where both sides pull equally, and the rope doesn't move
b)
a wide receiver using his hands to stop and catch a football thrown by the quarterback
c)
a car traveling on a straight part of the highway with a cruise control set at constant velocity
d)
a book pushing down on the desk where it is resting
42.
A wheelbarrow is experiencing two forces. One is pushing 5N east and another 5N west. What is true about the motion of the wheelbarrow?
a)
it isn't moving
b)
it is accelerating
c)
it is slowing down
d)
its speed is constant
43.
A 260.5N unbalanced force applied to push a chair across the room causing an acceleration of 4.2 m/s2. What is the mass of the chair?
a)
62.02 kg
b)
63.69 kg
c)
263.3 kg
d)
1123.5 kg
44.
When a person jumps horizontally off the end of a boat, the person goes forward and the boat goes backward. This is an example of 
a)
inertia
b)
action and reaction
c)
Newton's 1st law
d)
Newton's 2nd law
45.
The resultant force on the box is 
a)
2 Newtons to the left
b)
10 Newtons to the right
c)
10 Newtons to the left
d)
20 Newtons to the right
46.

If a ball thrown straight up into the air takes 4 seconds to reach the top (peak), how long will it take to travel from the peak back to the original position?

a)

0s

b)

1s

c)

3s

d)

4s

47.

The fact that an apple and a watermelon, dropped simultaneously from the same height, would hit the ground at the same time indicates that

a)

you don't like apples or watermelons.

b)

greater masses have greater acceleration.

c)

lesser masses have greater acceleration.

d)

acceleration is independent of mass.

48.

If two projectiles are launched at two different heights, 2m and 10m, which one will reach the ground first?

a)

2m

b)

10m

c)

they both will hit the ground at the same time

49.

What is true about the vertical velocity of a projectile launched horizontally?

a)

It is initially at its maximum value.

b)

It increases due to gravity as it falls.

c)

It remains constant throughout its trajectory.

d)

It decreases as it falls due to gravity.

50.

Which hits the ground first if they start at the same height: a dropped ball or a ball launched with a

horizontal velocity?

a)

the launched ball

b)

the dropped ball

c)

they both hit at the same time

51.

What is the velocity of an object launched straight up at its highest point?

a)

zero

b)

equal to its vx

c)

½ its maximum value

d)

equal to gravity

52.

The path followed by a projectile is also known as its

a)

trajectory

b)

range

c)

height

d)

vertical displacement

53.
Which situation is work not done?
a)
lifting a 20 pound box off the floor
b)
holding a 20 pound box above the floor
c)
sliding a 20 pound box across the floor
d)
sliding a 20 pound box up an inclined plane
54.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Chemical
d)
Sound
55.
A battery converts what type of energy to another?
a)
sound to kinetic
b)
light to heat
c)
mechanical to electrical
d)
chemical to electrical
56.

What is needed to calculate work?

a)

force

b)

distance

c)

time

d)

mass

57.

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

58.

A soccer player kicks a ball with 20 Newtons of force causing it to travel 100 meters. How much work is done on the ball?

a)

200 J

b)

80 J

c)

5 J

d)

2000 J

59.

Which of these items is not part of the law of conservation of energy?

a)

energy cannot be created

b)

energy cannot be destroyed

c)

energy can be transferred between forms

d)

energy is destroyed by friction

60.

A horse follows a dangling carrot for 20 m, if it took her 50 seconds to reach it, what was her average velocity?

a)

1,000 m/s

b)

2.5 m/s

c)

0.4 m/s

d)

20 m/s

61.

How many seconds does it take to travel 800 cm at a speed of 25 cm/s?

a)

32 s

b)

20,000 s

c)

0.03 s

d)

25 s

62.

Which of the following has INCORRECT units?

a)

speed = m/s

b)

time = s

c)

displacement = m

d)

velocity = s

63.
Polar bears are extremely good swimmers.  If a polar bear is swimming with an average of 2.6 m/s, how far will it have traveled after 120 seconds?
a)
46.2 m
b)
120 m
c)
312 m
d)
456.3 m
64.
An object moves from a position of +10 m to +5 m.  Velocity is:
a)
positive
b)
negative
65.
What is the speed of a car that traveled 32 m in 2 seconds?
a)
64 m/s
b)
34 m/s
c)
16 m/s
d)
0.0625 m/s