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WorksheetsPhysics I Final Exam Review
Total questions: 50
Worksheet time: 2hrs 40mins
Name
Class
Date
1.
Which of these is a scientific hypothesis?
a)
a.Atoms are the smallest particles of matter.
b)
a.The universe is surrounded by a second universe, the existence of which cannot be detected by scientists.
c)
a.Albert Einstein was the greatest physicist of the 1900s.
2.
The science that is basic to the other sciences is
a)
physics.
b)
chemistry.
c)
biology
d)
astronomy
3.
The language of science is
a)
mathematics.
b)
nature.
c)
common language
d)
English
4.
For a hypothesis to be scientific, it must
a)
a.be in agreement with what we know is true.
b)
a.have a test for proving it right.
c)
a.have a test for proving it wrong.
d)
a.be based on an existing scientific theory.
5.
A hypothesis is
a)
the long side of a right triangle.
b)
an educated guess that has yet to be proven by experiment.
c)
close agreement by competent observers of observations of the same phenomena.
d)
a guess that has been tested over and over again and always found to be true.
6.
A theory is
a)
a synthesis of a large collection of information including well-tested guesses.
b)
an educated guess that has yet to be proven by experiment.
c)
close agreement by competent observers of observations of the same phenomena.
d)
a guess that has been tested over and over again and always found to be true.
7.
Which of the following is a reason to express scientific findings mathematically?
a)
The findings become more difficult to prove by experiment.
b)
The findings become easier to verify by experiment.
c)
The findings become more confusing.
d)
The findings become less appealing to the public.
8.
What is the Net Force?
a)
5 N to the right
b)
10 N to the right
c)
15 N to the right
d)
0 N
9.
moving at constant speed and in straight line motion
a)
Static Equilibrium
b)
Dynamic Equilibrium
c)
Weight
d)
Normal Force
10.
This is the upward force that balances the weight of an object on a surface
a)
Tension
b)
Normal
c)
Friction
d)
Weight
11.
If a 600 N Acrobat hangs motionless from 3 ropes, the tension in each rope is
a)
0 N
b)
200 N
c)
400 N
d)
600 N
12.
A man pushes a crate across the floor at a constant velocity. The magnitude of the friction acting on the crate is
a)
less than the applied force
b)
equal to the applied force
c)
greater than the applied force
d)
none of these
13.
a force that opposes motion between any surfaces that are touching
a)
velocity
b)
friction
c)
inertia
d)
position
14.
the tendency of an object to resist a change in its motion
a)
acceleration
b)
inertia
c)
mass
d)
frame of reference
15.
Objects with greater _________ also have greater inertia.
a)
speed
b)
mass
c)
temperature
d)
friction
16.
Because of inertia, a resting object will remain at ________.
a)
rest
b)
a constant speed
c)
school
d)
inertia
17.
Because of inertia, a moving object will keep ________.
a)
at rest
b)
moving
c)
in one spot
d)
inertia
18.
The law of inertia (Newton’s First Law) applies
a)
to both moving and nonmoving objects
b)
only to moving objects
c)
only to objects that are not moving
19.
What is the unit of measurement for force?
a)
AMP
b)
Seconds
c)
Newtons
d)
Miles
20.
An object in motion tends to stay in motion unless an ___ force acts on it.
a)
unbalanced
b)
balanced
21.
Acceleration only takes place when things speed up.
a)
True
b)
False
22.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
23.
When one object is travelling with a constant velocity, its acceleration will be
a)
decreasing
b)
increasing
c)
constant
d)
zero
24.
What information does a velocity give that a speed does not give?
a)
rate of change of distance
b)
direction
c)
units of measurement such as km/h or mi/h
d)
how fast something travels
25.
The force of a cart doubles. What happens to the cart's acceleration?
a)
It doubles
b)
It quadruples
c)
It halves
d)
It quarters
26.
True or false. Mass resists acceleration.
a)
True
b)
False
27.
How can Newton's second law be represented mathematically?
a)
F=MA
b)
M= F/A
c)
A= F/M
d)
All are correct
28.
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
29.
Will it take more force to push an empty shopping cart or a shopping cart that is full?
a)
The empty shopping cart
b)
The full shopping cart
c)
They will take the same amount of force
30.
Football A has a greater mass than football B. Which football will have greater acceleration when both are thrown with the same force in the same direction?
a)
Football A
b)
Football B
c)
They will have the same acceleration
d)
Mass has no effect on acceleration
31.
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
32.
What is the net force on this box?
a)
30 N left
b)
25 N right
c)
5 N left
d)
55 N right
33.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
34.
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
35.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
36.
Which has more momentum: a car stopped at a red light or a bike moving at 15 mph?
a)
car
b)
bike
c)
they are equal
d)
cannot determine using the info provided
37.
A 2 kg cart has a momentum of 10 kg m/s. What is its velocity?
a)
22 m/s
b)
.2 m/s
c)
5.0 m/s
d)
20 m/s
38.
An object with a mass of 2000 kg at rest has what momentum?
a)
2000 kg m/sec
b)
0 kg m/sec
c)
2000 kg
d)
2000 m/sec
39.
A 0.250 kg cart moving at 0.500 m/s has how much momentum?
a)
0.5 kg*m/s
b)
.125 kg*m/s
c)
12.5 kg*m/s
d)
10 kg*m/s
40.
Momentum is a ____________________ quantity
a)
science
b)
scalar
c)
vector
d)
energy
41.
How can a tennis ball and a bowling ball have the same momentum?
a)
have the same speed
b)
have different speeds
c)
one is moving backwards
d)
they can't
42.
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
43.
The unit of work is called the joule
a)
true
b)
false
44.
The energy an object has by virtue of its motion is its kinetic energy.
a)
true
b)
false
45.
A 10N object moves 1 m/s. Its kinetic energy is:
a)
10 J
b)
0.5 J
c)
more than 10 J
d)
1 J
46.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Electromagnetic
47.
Stored energy that results from the position or shape of an object is called...
a)
Thermal
b)
Potential
c)
Kinetic
d)
Gravitational
48.
At what position does the rock have the greatest kinetic energy?
a)
A
b)
B
c)
D
d)
E
49.
A roller coaster car is poised at the top of the first hill on its track. What type of energy is the car's total energy stored as?
a)
Kinetic
b)
Thermal
c)
Potential
d)
Mechanical
50.
A box with a mass of 20 kg is moving with a velocity of 3 m/s to the right. How much kinetic energy does it have?
a)
60 J
b)
75 J
c)
90 J
d)
180 J
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