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Physics Final Review Flashcards | StudBud
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Physics Final Review
Physics Final Review
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Physics Final Review
Flashcards
51 cards
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Questions
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1
the v shaped wave pattern made by a speed boat on a lake is...
a supersonic wave
a bow wave
a stern wave
a V wave
2
If an object is at rest while sitting on a table, which must be true?
the force of gravity is greater than the normal force
the net force acting on the object is zero
the normal force is greater than the force of gravity
the force of friction must equal the force of gravity
3
Touching an electroscope with a negatively-charged rod is an example of charging by
friction
polarization
induction
contact/conduction
4
Atomic nuclei of most elements consist of...
protons and electrons
protons and neutrons
protons only
neutrons and electrons
5
Which region of the electromagnetic spectrum travels the fastest?
gamma rays
radio waves
visible light
all regions travel at the same speed
6
An electron vibrates 1000x a second. It generates a wave with...
a period of 1000s
a speed of 1000m/s
a wavelength of 1000m
a frequency of 1000 Hz
7
Compared to the frequency of UV light, the frequency of IR is...
lower
higher
the same
8
If all of the mobile things on Earth's surface began moving west...
Earth's rotation would be completely unaffected
Earth's rotation would be slightly faster
Earth's rotation would be slightly slower
9
If you comb your hair and the comb becomes positively charged, then your hair becomes
positively charged
negatively charged
neutral
who knows? there is no way to tell
10
A projectile motion in vacuum, the horizontal v
i
is _______ the horizontal v
f
.
equal to
greater than
unrelated to
less than
11
A toy is thrown straight up into the air. Its acceleration the entire time is
always increasing
10 m/s2 downward
always decreasing
0
12
An object is in free fall. Each second it...
falls the same distance as the previous second
falls with the same instantaneous speed
falls a larger distance than the previous second
falls with the same average speed
13
A rocket can accelerates in space. The force that propels the rocket is...
the force of the exhaust gases on the rocket
neither of these forces
the force of the rocket on the exhaust gases
14
A bowling ball with a mass of 5 kg on the moon has what mass on Earth?
about 50 kg
5 N
5 kg
about 50 N
15
A girl walks 140 m North and then turns around and walks 60 m South. What is her displacement?
200 m S
200 m N
80 m S
80 m N
16
a tennis ball and an equal diameter steel ball are both dropped...
the force on the tennis ball is larger
the force on a steel ball is larger
they both have the same force acting on them
the tennis ball's acceleration is larger
17
The Doppler effect creates a change in what to the listener of a sound?
amplitude
frequency
loudness
intensity
18
When resistors are in parallel, the overall resistance of the circuit is...
the same as one resistor
the resistance of each added together
less than either resistor
19
A car is traveling down the highway at a constant speed of 30 m/s. It's acceleration is
positive
constantly changing
0
negative
20
Sound waves are classified as
longitudanal, electromagnetic waves
transverse, mechanical waves
transverse, electromagnetic waves
longitudinal, mechanical waves
21
When light bends as it passes from one medium into another, this is called
interference
diffraction
reflection
refraction
22
As a stapler is lifted vertically off of a desk, its potential energy
decreases
increases
remains 0
remains constant
23
a projectile's horizontal speed is conserved because it...
has no vertical component
is acted upon by a 0 net force
is not acted upon by horizontal forces
is not acted upon by any forces
24
A sound the is 30 dB levels louder than another sound is how many times more intense?
30 times
1000 times
3000 times
3 times
25
According to Newton’s ______ law, F
net
= ma
2nd
4th
1st
3rd
26
The law of reflections states that the angle of incidence is...
larger than the angle of reflection
smaller than the angle of reflection
equal to the angle of reflection
27
What is the proper SI unit to measure power?
Newton
kilogram x meter / second
Joule
Watt
28
In physics, what SI unit is weight measured in?
lbs
g
kg
N
29
a bug hits a car windshield. The acceleration of the car is...
the same as the facceleration of the car
Not enough info
larger than the acceleration of the bug
smaller than the acceleration of the bug
30
Which of the following is not true of the electric force that exists between two point charges?
the closer the two particles, the stronger the force
the smaller the objects' charges, the stronger the force
the equation for this force has a constant
it can be attractive or repulsive
31
a person is pulled towards the Earth by a Force of 500 N. The person pulls on the Earth with...
500 N
a very very large force
a very very small force
32
Difficulty in pushing a large crate from rest is primarily due to
static friction
the centripetal force
gravity
kinetic friction
33
For an object traveling in a circle, what is always directed toward the center of the circle?
force, acceleration, and velocity
force only
force and acceleration
acceleration and velocity
34
In order for electricity to flow in a circuit, you must have...
two light bulbs in a series
a complete path for the current
a switch that is open
two light bulbs in parallel
35
How much work is done if you raise a 4.0 N weight 2.0 m above the ground?
about 80 J
0 J
about 0.8 J
8.0 J
36
If a neutral object loses electrons...
it is still neutral
then it is positively charged
it is negatively charged
37
What quantity is equal to F x t (Force multiplied by time)?
impact
kinetic energy
impulse
work
38
In a good insulator, electrons are usually...
free to move around
semi-free to move around
not moving at all
tightly bound to the nuclei
39
Light waves are classified as
transverse, mechanical waves
longitudinal, mechanical waves
longitudanal, electromagnetic waves
transverse, electromagnetic waves
40
Which is not a transverse wave?
all of these
sound
radio waves
light
41
destructive interference occurs when...
none of these
the crests of two waves overlap
two waves of the same color overlap
the crest of one wave meets the trough of another
42
The amount of time it takes for one complete wave to pass through a given point is its
wavelength
frequency
period
amplitude
43
The kinetic energy of a boulder with a mass of 90 kg perched on a cliff 20.0 m high is
0 J
about 18,000 J
about 900 N
about 900 J
44
a bug hits a car windshield. The force of the car on the bug is...
larger than the force of the bug on the car
the same as the force of the car on the bug
Not enough info
smaller than the force of the bug on the car
45
Compared to the wavelength of UV light, the wavelength of IR is...
the same
lower
higher
46
If a large, 18-wheel truck going 60 mph collides head-on with a bicycle going 10 mph
no forces are exerted by either object
the bicycle exerts a larger force than the truck
both objects exert the same force on one another
the truck exerts a larger force than the bicycle
47
Cart A has 10x the mass of Cart B. When pushed with equal force, A's acceleration will be...
100x that of B
1/100 that of B
10x that of B
1/10 that of B
48
If a large, 18-wheel truck going 60 mph collides head-on with a bicycle going 10 mph
the truck experiences a greater deceleration upon impact
both objects experience equal deceleration upon impact
the bicycle experiences a greater deceleration upon impact
neither object accelerates (+ or -) at all upon impact
49
Which of the following conservation laws does not exist?
force
momentum
energy
electric charge
50
a ball thrown straight up has an instantaneous speed of _____ at the top of its arc
about 10 m/s
about 20 m/s
0 m/s
about 50 m/s
51
What type of interference occurs when the crests of two waves meet?
destructive
complete destructive
constructive
standing
