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WorksheetsFinal Review
Total questions: 86
Worksheet time: 1hrs 5mins
Name
Class
Date
1.
When you are sitting in science class, you and all of your classmates are moving through space at 2.8 million miles per hour. Why do your classmates not appear to be moving?
a)
You are the same reference point.
b)
You are in the same frame of reference.
c)
The frame of reference you are looking at is moving, so your classmates look like they are not moving.
d)
The reference point you are looking at is moving, so your classmates look like they are not moving.
2.
You are sitting on a bench in the park. There is a bird walking to the right in front of you. According to the bird, you are _______________.
a)
not moving
b)
moving to the right
c)
moving to the left
d)
In a different frame of reference
3.
Which of the following is a vector
a)
65 miles per hour
b)
1.32 feet
c)
6 Liters
d)
- 6m/s
4.
Burger walked 10 meters west, 5 meters east, 6 meters north, 1 meter south, and 5 meters east. What is her distance?
a)
0 m
b)
5 m North
c)
27 m South
d)
27 m
5.
Costello walked 10 meters left, 5 meters right, 6 meters left, 1 meter right, and 5 meters left. What is his displacement?
a)
0 m
b)
15 m left
c)
15 m right
d)
It depends on his frame of reference.
6.
What is the speed of an object that moves 25 meters in 95 seconds?
a)
0.263157895
b)
0.26 m/s
c)
2375 m/s
d)
3.8 m/s
7.
Which of the following is NOT accelerating?
a)
Someone walking down a straight hallway at a constant speed
b)
A car speeding up to pass a buggy
c)
A bicyclist making a right hand turn
d)
A runner slowing down after she crosses the finish line
8.
An object accelerates from rest to a velocity of 14.5 m/s. Which of the following is true?
a)
Vi = 0 m/s
b)
Vf = 0 m/s
c)
Final velocity = 0 m/s
d)
Change in velocity = 0 m/s
9.
A car is moving past a runner at -45 m/s, the runner is moving past a tree at 4 m/s, and the tree is not moving at all with respect to the ground. All of the following are objects in this situation except
a)
Bird
b)
Tree
c)
Car
d)
Runner
10.
Speed, velocity, and acceleration are all classified as _______ because they measure how something is changing with respect to time.
a)
Vectors
b)
Rates
c)
Math
d)
Scalars
11.
Which of the following statements is correct?
a)
The slope of a line on a position vs time graph is velocity.
b)
The slope of a line on a position vs time graph shows how much an object speeds up over time.
c)
The slope of a line on a position vs time graph is force.
d)
The slope of a line on a position vs time graph is a horizontal line.
12.
According to the graph to the right (Position vs Time 1), what is the object’s displacement at 24 seconds?
a)
-1 m
b)
0 m
c)
2 m
d)
3 m
13.
According the the graph to the right (Position vs Time 1), what is the object’s velocity from 18-26 seconds?
a)
1 m/s
b)
0.5 m/s
c)
4 m
d)
8 s
14.
The metric unit of force is the
a)
Joule
b)
Meter
c)
Kilogram
d)
Newton
15.
When an unbalanced force acts on an object,
a)
the object’s motion does not change.
b)
the weight of the object decreases.
c)
the object accelerates.
d)
the inertia of the object increases.
16.
When a pair of balanced forces acts on an object, the net force that results is
a)
greater in size than both forces combined.
b)
greater in size than one of the forces.
c)
equal in size to one of the forces.
d)
equal to zero.
17.
As you push a cereal box across a tabletop, the sliding friction acting on the cereal box
a)
acts in the direction of motion.
b)
equals the weight of the box.
c)
is usually greater than static friction.
d)
acts in the direction opposite of motion.
18.
The forces acting on a falling leaf are
a)
air resistance and fluid friction.
b)
gravity and static friction.
c)
gravity and air resistance.
d)
weight and rolling friction.
19.
An open parachute increases air resistance of a falling sky diver by
a)
decreasing the weight of the diver.
b)
increasing the terminal velocity.
c)
increasing surface area.
d)
reducing fluid friction.
20.
The property of matter that resists changes in motion is called
a)
Friction.
b)
Inertia.
c)
Gravity.
d)
Weight.
21.
An orange might roll off your cafeteria tray when you stop suddenly because of
a)
the balanced forces acting on the orange.
b)
the centripetal force acting on the orange.
c)
the friction forces acting on the orange.
d)
the orange’s inertia.
22.
If a force of 12 N is applied to an object with a mass of 2 kg, the object will accelerate at
a)
0.17 m/s2.
b)
6 m/s2.
c)
24 m/s2.
d)
12 m/s2.
23.
In which of the following are opposite pairs of forces involved?
a)
when a tennis racket strikes a tennis ball
b)
when stepping from a curb
c)
when rowing a boat
d)
all of the others
24.
How does friction affect the motion of an object?
a)
Friction does not affect the motion of an object
b)
By slowing the object down
c)
By opposing motion
d)
None of the others
25.
Newton’s First Law of Motion can also be referred to as_______________?
a)
The Law of Conservation of Force
b)
The Law of reflexes
c)
The Law of Acceleration
d)
The Law of Inertia
26.
The acceleration of a 6 kg object that hits a brick wall with a force of 28N is_______________?
a)
4.7N
b)
4.6 m/s
c)
4.7 m/s2
d)
168 N
27.
The energy of motion is _______________.
a)
potential energy
b)
kinetic energy
c)
mechanical energy
d)
gravitational potential energy
28.
Gravitational potential energy depends on _______________.
a)
height of an object
b)
the distance an object is off of the ground
c)
gravity only
d)
mass only
29.
A 20 kg airplane is moving through the air at a velocity of 22 m/s. It maintained a height of 32000 meters. How much kinetic energy does the airplane have?
a)
220 J
b)
9,680 J
c)
4,840 J
d)
4,400 J
30.
When a roller coaster is moving along its track, kinetic energy is at its _______________ at the bottom of the first hill.
a)
greatest
b)
least
c)
smallest
d)
worst
31.
When you use a flashlight, you are converting _______________ energy into _______________ energy into _______________ energy.
a)
electrical/light/heat
b)
chemical/electrical/electromagnetic
c)
battery/light bulb/heat lamp
d)
chemical/light/heat
32.
Work is a transfer of
a)
Energy
b)
Force
c)
Mass
d)
Motion
33.
The energy of height is called
a)
Kinetic energy
b)
Potential gravitational energy
c)
Thermal energy
d)
Work
34.
A small 20 kg canoe is floating downriver at a speed of 2 m/s. What is the canoe’s kinetic energy?
a)
22 J
b)
40 J
c)
80 J
d)
400 J
35.
A 4 kg cat is resting on top of a bookshelf that is 3 m high. What is the cat’s gravitational potential energy relative to the floor?
a)
7 J
b)
21 J
c)
29 J
d)
118 J
36.
Which of the following increases when an object becomes warmer?
a)
Chemical energy
b)
Elastic potential energy
c)
Nuclear energy
d)
Thermal Energy
37.
The energy stored in gasoline is
a)
Chemical energy
b)
Electromagnetic Energy
c)
Mechanical Energy
d)
Nuclear Energy
38.
The mechanical energy of an object equals its
a)
chemical energy plus its nuclear energy.
b)
kinetic energy plus its potential energy.
c)
nuclear energy.
d)
thermal energy.
39.
Matter is needed to transfer thermal energy by
a)
Conduction
b)
Convection
c)
Radiation
d)
Conduction & Convection
40.
Which type of mechanical wave needs a source of energy to produce it?
a)
A transverse wave
b)
A longitudinal wave
c)
A surface wave
d)
All of the others
41.
Which wave causes particles in a medium to move only in the same direction as the wave’s energy?
a)
a transverse wave
b)
A surface wave
c)
A longitudinal wave
d)
None of the others
42.
A period is the length of time it takes for
a)
A disturbance to start a wave
b)
Two complete wavelengths to pass by
c)
A wave to travel the length of a string
d)
One complete wavelength to pass by
43.
A wave has a wavelength of .010 m and a frequency of 5.0 hertz. What is its speed?
a)
0.050 m/s
b)
50 Hz/s
c)
0.002 m/s
d)
0.0005 m/s
44.
To find the amplitude of a transverse wave, you measure
a)
from a trough to the rest position.
b)
From a crest to the rest position
c)
From to top the the crest to the bottom of the trough
d)
From trough to rest or crest to rest
45.
In refraction, when a wave travels from one medium to another, it
a)
changes speeds.
b)
doesn’t change
c)
always moves in the same direction.
d)
travels in the opposite direction.
46.
Suppose two waves collide and the temporary combined wave that results is smaller than the original waves. What term best describes this interaction?
a)
diffraction
b)
destructive interference
c)
standing wave
d)
constructive interference
47.
A sound wave is an example of a
a)
transverse wave.
b)
longitudinal wave.
c)
standing wave
d)
surface wave
48.
An ambulance siren sounds different as it approaches you than when it moves away from you. What scientific term would you use to explain how this happens?
a)
Ultrasound
b)
Diffraction
c)
Rarefaction
d)
The Doppler Effect
49.
When a sound source moves quickly past you (first towards you, then away from you), the pitch you hear is
a)
lower than when the source is stationary.
b)
higher than when the source is stationary.
c)
the same as when the source is stationary.
d)
first higher and then lower than the pitch of the source when stationary.
50.
Different types of electromagnetic waves vary in
a)
the speed they travel.
b)
wavelength and frequency.
c)
the way they reflect.
d)
the orientation of their electric and magnetic fields.
51.
The waves with the longest wavelengths in the electromagnetic spectrum are
a)
infrared waves.
b)
gamma waves.
c)
radio waves.
d)
X-rays.
52.
On the electromagnetic spectrum, visible light is between what two other types of light
a)
Radar waves and X-rays
b)
Television waves and infrared waves
c)
Infrared rays and ultraviolet waves
d)
Ultraviolet waves and gamma waves
53.
The reason electricity and electric energy exist in the first place is because of
a)
The negative charge of the e+
b)
The negative charge of the e-
c)
The positive charge of the e-
d)
The negative charge of the p-
54.
The appearance of an electric field depends on the
a)
charge that produced the field.
b)
distance from the charge.
c)
circuit the charge is in.
d)
both the charge & distance from the charge
55.
If the two charges represented above were brought very close to each other, they would
a)
attract each other.
b)
repel each other.
c)
cause static charge.
d)
have no effect on each other.
56.
An electrical closed system is called a
a)
circuit
b)
power source
c)
voltage
d)
electric energy
57.
An electrical insulator has
a)
electrons that freely move.
b)
more protons than electrons.
c)
negatively charged ions.
d)
electrons tightly bound to its atoms.
58.
Which one of these is not another term for voltage
a)
Pressure
b)
Electron flow
c)
Potential difference
d)
Potential electric energy
59.
If an object is a resistor, what does it do in a circuit?
a)
Resists current
b)
Reduces voltage
c)
Convert potential difference to another form of energy, like thermal or electromagnetic
d)
All of the others
60.
Resistance is affected by a material’s
a)
thickness.
b)
length.
c)
temperature.
d)
all of the others
61.
Which of the following would reduce the resistance of a metal wire?
a)
increasing its thickness
b)
Increasing its temperature
c)
Increasing it’s length
d)
All of the others
62.
Which one of the following materials sometimes behaves like a conductor, and sometimes behaves like a resistor?
a)
Semiconductor
b)
Superconductor
c)
Semiresistor
d)
Power source
63.
According to Ohm’s law, as voltage decreases
a)
Resistance decreases
b)
Current decreases
c)
Current increases
d)
Resistance and current both decrease
64.
What is the difference in electrical potential energy between two places in an electric field?
a)
Current
b)
Resistance
c)
Potential difference
d)
Static Charge
65.
How many paths through which charge can flow would be shown in a diagram of a series circuit?
a)
One
b)
Two or more
c)
None
d)
Not enough information
66.
Beyond the Kuiper belt, at the edge of our Solar System, lies the area where comets originate called
a)
The gas giants
b)
The Oort Cloud
c)
Dark matter
d)
The void
67.
Which one of these is the largest?
a)
Earth
b)
Solar System
c)
Local Group
d)
Virgo supercluster
68.
How old is our Universe?
a)
13.8 million years
b)
13.8 billion years
c)
6,000 years
d)
There is no way to know
69.
Which word describes how our solar system formed?
a)
Accretion
b)
Fusion
c)
Inflation
d)
Singularity
70.
In the formation of our solar system, nearly all of the mass became
a)
The planets
b)
Jupiter
c)
The Sun
d)
The Oort cloud
71.
For the sun to be stable, the inward and outward forces within the sun must be
a)
in equilibrium.
b)
part of the fusion reaction.
c)
focused in the core.
d)
balanced with temperature and density.
72.
What would be required to occur to cause the fusion of element #48?
a)
A low mass star burning fuel
b)
A red giant
c)
A supernova
d)
A supergiant
73.
A hot, bright star appears in which section of an H-R diagram?
a)
Lower left
b)
Upper right
c)
Upper left
d)
Lower right
74.
The life cycle of a star begins with a cloud of gas and dust called a
a)
Protoplanet
b)
Constellation
c)
Nebula
d)
Protosun
75.
Both high-mass and medium-mass stars are classified as
a)
Main-sequence stars
b)
White dwarfs
c)
Supernovas
d)
Neutron stars
76.
Galaxies are classified into three groups based on their
a)
Shapes
b)
Sizes
c)
Number of stars
d)
Brightness
77.
The Big Bang Theory explains:
a)
How the universe began
b)
How stars form
c)
The universe as we see it today
d)
How the universe began and how it appears today
78.
What happened during the Inflation stage?
a)
Spacetime itself rapidly expanded
b)
Matter expanded into space
c)
Space and time appeared separately
d)
Matter stopped annihilating with antimatter
79.
Which of the following provides support for the Big Bang Theory?
a)
Red shifted galaxies
b)
The cosmic microwave background radiation
c)
Spiral galaxies
d)
Red shifted galaxies and background radiation
80.
Which one of these is not a plausible hypothesis for how the universe will end based on the behavior of dark matter?
a)
The Big Rip
b)
The Big Wave
c)
The Big Crunch
d)
The Big Freeze
81.
You are running the bases on a baseball diamond that is a square where each side is 100m long. What is your displacement when you are at 2nd base?
a)
100 m
b)
100 m2
c)
200 m
d)
141 m
82.
A 26,000 g object is falling from the top of a 100 meter building. What force does the object hit the ground with? Ignore air resistance.
a)
255 N
b)
255 m/s2
c)
2600 N
d)
2600 m/s2
83.
Entropy in the universe increases because
a)
Spontaneous changes produce order in a closed system
b)
Work produces disorder in a closed system
c)
Work produces waste heat, which is not useful in a closed system
d)
All of the others
84.
In which medium would sound travel the fastest?
a)
Salt water
b)
Fresh water
c)
Air
d)
Iron
85.
What is required for objects to be superconductors?
a)
Super large
b)
Super small
c)
Super cold
d)
Super metallic
86.
Thinking about how stellar fusion works, what will happen to the amounts of hydrogen and helium in the sun over the next few billion years?
a)
Hydrogen will increase and helium will decrease
b)
Hydrogen will decrease and helium will increase
c)
Both hydrogen and helium will increase
d)
There will be no change in either hydrogen or helium
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