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WorksheetsPhysical Science Midterm Review
Total questions: 98
Worksheet time: 8hrs 22mins
Name
Class
Date
1.
The units for momentum are
a)
kg
b)
m/s
c)
kg-m/s
d)
kg/m/s
2.
The law of conservation of momentum states that,
a)
p before is less than p after
b)
p before is the same as p after
c)
p before is more than p after
3.
A 0.250 kg cart moving at 0.400 m/s has how much momentum?
a)
0.1 kg-m/s
b)
1 kg-m/s
c)
10 kg-m/s
d)
100 kg-m/s
4.
When the speed of an object is doubled, its momentum
a)
remains unchanged in accord with the conservation of momentum.
b)
doubles
c)
quadruples
d)
decreases
5.
Which object listed below has the greatest momentum?
a)
A 0.05 kg object rolling at 0.2 m/s.
b)
A 0.15 kg object rolling at 2 m/s.
c)
A 0.15 kg object rolling at 1 m/s
d)
A 0.4 kg object rolling at 2 m/s.
6.
A runner has a momentum of 670 kg m/s and is travelling at a velocity of 9 m/s. What is his mass?
a)
74.4 kg
b)
6030 kg
c)
0.0134 kg
d)
80 kg
7.
If 2 objects collide and stick together, what will happen to their velocities?
a)
velocities will increase
b)
velocities will decrease
c)
velocities will stay the same
d)
none of the above
8.
What is the formula for calculating momentum?
a)
m=mv
b)
p=m/v
c)
p=v/m
d)
p=vm
9.
The measure of the pull of gravity on an object is ___________________.
a)
motion
b)
weight
c)
speed
d)
friction
10.
Which of Newtons laws explains why football teams have big, large, fast athletes.
a)
Frist and second
b)
second law
c)
first law
d)
Third law
11.
A unbalanced force means that an object is
a)
zero net force
b)
motion of an object
c)
sitting still
d)
object at rest
12.
Which law explains why when you put a book on a table the table pushes on the book
a)
3rd law
b)
4th law
c)
1st law
d)
2nd law
13.
When Ronda Rousey got kicked in the face, What is the interaction pair?
a)
The foot and the face
b)
Ronda Rousey and media criticism
c)
The foot and the air flow
d)
Ronda Rousey and the floor
14.
A bus hits a bug and the bug splatters on the windshield, which force is greater?
a)
The Bus
b)
The Bug
c)
They're the same
d)
Gravity acting on the bus
15.
Newton's third law states that any action will have a(n) _______ and ______ reaction
a)
Equal and similar
b)
Equal and opposite
c)
Equal and different
d)
Greater and opposite
16.
A book rests on a table. The force of gravity pulls down on the book with a force of 20 newtons. What prevents the books from accelerating downward at 9.8 m/sec2
a)
The table presses back up on the book with an equal and opposite force of 20 newtons.
b)
The table presses back up on the book with a force greater than 20 newtons.
c)
The table and the book together are accelerating downwards at 9.8 m/sec2
d)
The inertia of the book holds it up
17.
This equation goes with which law?
a)
Newton's first law of motion
b)
Newton's second law of motion
c)
Newton's third law of motion
d)
None of these
18.
Friction and gravity are both examples of a force.
a)
True
b)
False
19.
A 20 kg bike accelerates at 10 m/s2. How much force was applied?
a)
25
b)
200 N
c)
20 N
d)
10 N
20.
A bike accelerates at 10 m/s2 when a force of 50N is applied. What is the mass of the bike and its rider?
a)
25 kg
b)
200 kg
c)
20 kg
d)
5 kg
21.
Which car is accelerating?
a)
A car that is not moving
b)
A ar that rounds a curve at a constant speed
c)
A car traveling at a constant speed
d)
A car that has a set speed of 60mph
22.
How fast is the car traveling at 30 seconds?
a)
5m/s
b)
10m/s
c)
20m/s
d)
30m/s
23.
Pushing a child on a swing is easier than pushing an adult on the same swing.
a)
1st Law
b)
2nd Law
24.
If you double the mass of an object with the same force apply on it, the acceleration will
a)
double
b)
cut in half
c)
the same
d)
zero
25.
What happens when unbalanced forces act on an object at rest?
a)
the object remains at rest
b)
the object begins moving in an unpredictable direction
c)
the object begins moving in the direction of the net force
d)
the object begins moving opposite to the direction of net force
26.
The acceleration produced by a net force on an object is
a)
inversely proportional to the mass of the object.
b)
directly proportional to the magnitude of the net force.
c)
in the same direction as the net force.
d)
all of the above
27.
45 m/s2 is the...
a)
Mass
b)
Force
c)
Acceleration
d)
weight
28.
What Unit do we Measure Force in?
a)
Newtons
b)
Joules
c)
grams
d)
pounds
29.
When a woman stands with two feet on a scale, the scale reads 280 N. When she lifts one foot, the scale reads .
a)
less than 280 N
b)
more than 280 N.
c)
280 N.
d)
140 N
30.
How can Newton's second law be represented mathematically?
a)
F=MA
b)
M= F/A
c)
A= F/M
d)
All are correct
31.
True or false. Mass resists acceleration.
a)
True
b)
False
32.
True or false. The appropriate units for velocity are m/s2
a)
True
b)
False
33.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
34.
Which has more Inertia? (so need more force to move)
a)
Truck
b)
Ant
c)
A cat
d)
A skateboard
35.
What kind(s) of objects have inertia?
a)
all objects with mass
b)
only objects at rest
c)
only objects in motion
d)
only objects whose motion is being changed
36.
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
37.
An object in motion will stay in what kind of motion as long as the net forces acting on it are zero?
a)
slowing motion in a straight line
b)
accelerating motion in a straight line
c)
constant motion in a straight line
d)
constant motion in an unpredictable direction
38.
What can a force do?
a)
all of the above
b)
start a motion
c)
stop a motion
d)
change the direction of the motion
39.
What is the name for a push or pull?
a)
A movement
b)
A force
c)
Speed
d)
Density
40.
friction is a force that acts
a)
in the same direction as the motion
b)
opposite to the direction of the motion
c)
opposite to the applied forces
d)
the same direction as the applied force
41.
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
42.
After a cannonball is fired into frictionless space, the amount of force needed to keep it going equals
a)
twice the force with which it was fired
b)
the same amount of force with which it was fired
c)
1/2 the force with which it was fired
d)
zero, since no force is requires to keep it moving.
43.
An object following a straight-line path at a constant speed
a)
has zero acceleration
b)
has no forces acting on it
c)
has a net force acting in the direction of motion
d)
none of these
44.
One object has twice as much mass as another object. The first object also has also twice as much...
a)
velocity
b)
gracitational acceleration
c)
inertia
d)
all of these
45.
A golf ball accelerates off a tee at 15m/s2, changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?
a)
750 seconds
b)
35 seconds
c)
0.3 seconds
d)
3.3 seconds
46.
A ball of clay is thrown at a wall at a velocity of 28.0 m/s. After it hits the wall, it takes 0.020 s to stop. What is the acceleration of the clay when it hits the wall?
a)
1400 m/s2
b)
-1400 m/s2
c)
0.56 m/s2
d)
-0.56 m/s2
47.
A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest. Find the acceleration.
a)
30 m/s
b)
24 m/s2
c)
9 m/s2
d)
81 km/hr
48.
A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What's the acceleration?
a)
24 m/s2
b)
18 m/s2
c)
16 m/s2
d)
16 m/s
49.
A dog runs with an initial speed of 7.5 m/s on a waxed floor. It slides to a stop in 15 seconds. What is the acceleration?
a)
-7.5 m/s
b)
-7.5 m/s2
c)
-0.5 m/s2
d)
7.5 mi//hr
50.
How fast is the car traveling at 30 seconds?
a)
5m/s
b)
10m/s
c)
20m/s
d)
30m/s
51.
The picture of the position vs. time graph shows an object that is...
a)
accelerating/speeding up
b)
moving at a constant speed
c)
not moving
d)
accelerating/slowing down.
52.
Acceleration is defined as the CHANGE in
a)
time it takes for one place to move to another place.
b)
velocity of an object.
c)
distance divided by the time interval
d)
velocity divided by the time interval
53.
Why does a car accelerate as it round a corner at a constant speed?
a)
Its direction changes
b)
It doesn't
c)
It slows down
d)
Its speeds up
54.
Acceleration only takes place when things speed up.
a)
True
b)
False
55.
In each of the following cases, determine where the car has no acceleration ?
a)
A car shortly after a stoplight turns green.
b)
A car approaching a red light
c)
A car with the cruise control set at 80 km/h
d)
A car turning a curve at a constant speed
56.
Determine the motion of the car.
a)
at rest
b)
moving at constant speed
c)
speeding up
d)
slowing down
57.
Determine the motion of the car.
a)
at rest
b)
constant velocity
c)
speeding up
d)
slowing down
58.
Which graph shows the object standing still?
a)
A
b)
B
c)
C
d)
D
59.
Which graph demonstrates the greatest positive speed?
a)
A
b)
B
c)
C
d)
D
60.
Which graph represents zero acceleration (constant velocity)?
a)
A
b)
B
c)
C
d)
D
61.
Which graph represents the greatest acceleration?
a)
A
b)
B
c)
C
d)
D
62.
What is this graph representing?
a)
Constant velocity
b)
Acceleration (speeding up)
c)
Deceleration (slowing down)
d)
No motion
63.
In which of the following graphs (click the image) are both runners moving at the same speed (note that graph c is the bottom right graph, and graph d is the bottom left graph)?
a)
Graph A
b)
Graph B
c)
Graph C
d)
Graph D
64.
What two measurements are necessary for calculating speed?
a)
Mass and time
b)
Temperature and mass
c)
Mass and distance
d)
Distance and time
65.
At 60 seconds, how far had this object traveled?
a)
0 m
b)
10 m
c)
20 m
d)
40 m
66.
How long did it take this object to travel 10 m?
a)
0 s
b)
10 s
c)
15 s
d)
20 s
67.
What is happening in this graph from point B to C?
a)
The object is going down a hill.
b)
The object is returning to its starting location.
c)
The object is slowing down.
d)
The object is staying still.
68.
What is happening in this graph from point A to B?
a)
The object is accelerating.
b)
The object is not moving.
c)
The object is decelerating.
d)
The object is moving at a constant speed.
69.
If you run around the football field (which is 2 miles) 3 times, what is your distance?
a)
0 miles
b)
3 miles
c)
6 miles
d)
9 miles
70.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
71.
What is the speed of an object that travels 60 meters in 4 seconds?
a)
240 m/s
b)
15 m/s
c)
0.067 m/s
d)
15 mph
72.
A measurement of how fast an object is moving
a)
Velocity
b)
Speed
c)
Vector
d)
Acceleration
73.
A description of the speed and direction of an object's motion
a)
Velocity
b)
Speed
c)
Acceleration
d)
Vector
74.
Can be measured in seconds (s)
a)
Distance
b)
Time
c)
Speed
d)
Acceleration
75.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
76.
How would you write 4.3756 x 104 in standard form?
a)
437,560,000
b)
0.00043756
c)
43,756
d)
4,3756
77.
How would you write 0.0005 in scientific notation?
a)
50 x 105
b)
5 x 104
c)
5 x 103
d)
.5 x 103
78.
How would you write -5.6 x 10-3 in standard form?
a)
0.0056
b)
-5,600
c)
0.00056
d)
-0.0056
79.
Scientific Notation is made up of two number parts. The first part should be a number between 1 and 100.
a)
True
b)
False
80.
Scientific Notation is made up of two number parts. The second part is a power of base 10.
a)
True
b)
False
81.
When writing a number in scientific notation, the first number must be greater than 1, but less than 10.
a)
False
b)
True
82.
The rule of scientific notation is to write all exponents with a base of ____.
a)
50
b)
5
c)
100
d)
10
83.
Convert to scientific notation:
520,000,000
520,000,000
a)
52 x 107
b)
5.2 x 107
c)
5.2 x 108
d)
0.52 x 109
84.
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
85.
UNDERSTANDING
If the exponent is a positive number...
If the exponent is a positive number...
a)
you will get a large number
b)
you will get a smaller number
86.
UNDERSTANDING
If the exponent is a negative number...
If the exponent is a negative number...
a)
you will get a large number
b)
you will get a small number
87.
How many zeros would be in this number if written in standard form?
6.47 x 1011
6.47 x 1011
a)
11
b)
9
c)
10
d)
12
88.
How many Meters are in a kilometer
a)
1 meter
b)
10 meters
c)
100 meters
d)
1,000 meters
89.
True or false there are 10 milimiters in a centemeter
a)
true
b)
False
90.
convert 30 cm to m
a)
300
b)
3
c)
0.03
d)
0.3 m
91.
convert 9 km to mm
a)
900,000
b)
9,000,000
c)
9,000
d)
90,000
92.
Which is greater?
9,000 milliliters or 10 liters
9,000 milliliters or 10 liters
a)
9,000 mL
b)
10 L
93.
6,000 millilters = ______ liters
a)
60
b)
600
c)
6
d)
6,000
94.
The abbreviation for gram is...
a)
G
b)
gg
c)
g
95.
What is the length of the key?
a)
2 cm
b)
0 cm
c)
4 cm
d)
1 cm
96.
What is the length of the straw?
a)
8 cm
b)
0 cm
c)
7 cm
d)
1 cm
97.
How many seconds are in 0.56 hours?
a)
2016 s
b)
56 s
c)
3360 s
d)
5600 s
98.
One thumbtack weighs 0.25 ounce. How many thumbtacks are in a box that has a mass of 3500 grams? (Hint: 1 oz is about 28g)
a)
31
b)
125
c)
500
d)
875
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