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Physics Midterm Review Flashcards | StudBud
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Physics Midterm Review
Physics Midterm Review
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College Prep Physics Class
Flashcards
39 cards
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Practice quiz
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Questions
39
Answers
1
This graph showing an object slowing down must have ____ on the x-axis and ____ on the y-axis
velocity, time
time, position
time, velocity
position, time
2
If a car suddenly stops, riders are jerked forward. This is an example of Newton's ___ Law.
3rd
4th
1st
2nd
3
I throw 3 darts and they all hit 6 inches right of center within an inch of each other. I am...
accurate and precise
neither precise nor accurate
accurate but not precise
precise but not accurate
4
The acceleration due to gravity on Earth is:
9.8 m/s2 down
-9.8 m/s2
9.8 m/s2 south
+9.8 m/s2
5
What are considered to be the three basic units in physics?
g, cm, s
kg, cm, s
g, m, s
kg, m, s
6
The slope of a position vs. time graph tells us...
time
acceleration
velocity
displacement
7
In physics we study the behaviors and interactions involving matter and energy.
True
False
8
Which is correct regarding distance, displacement, speed and velocity?
displacement and velocity are the vectors
distance and speed are the vectors
displacement and speed are the vectors
distance and velocity are the vectors
9
A percent error calculation is a measurement of...
accuracy
control
precision
10
If you walk 3km North then 2 km South then 4 km North, what is your displacement?
5 km North
9 km North
5 km
9 km
11
Which two variables are constant throughout a projectile's flight?
acceleration and time
acceleration and vertical velocity
horizontal velocity and vertical velocity
<p>acceleration and horizontal velocity</p>
12
If a car is driving North and slowing down, in what direction is its acceleration?
East
Forward
North
South
13
A roadrunner runs 50m North then 150m South in a total time of 25 s. Find its average velocity.
4 m/s South
8 m/s South
8 m/s
4 m/s
14
Which is a proper action-reaction pair, if I am standing still on the ground?
the earth pulls on me, and I push on the ground
the earth pulls on me, and I pull up on the earth
the earth pulls on me, and I remain at rest
the earth pulls on me, and the ground pushes up on me
15
How many meters are in a kilometer?
1000000
100
10
1000
16
A projectile is launched at an angle on level ground. when the projectile lands, which is NOT true?
the rising and falling times are equal
vy,f is equal and opposite vy,i
the final velocity is zero
the vertical displacement is zero
17
What is the weight of a 490 N person?
50
490
4800
9.8
18
Which will experience the most friction force when sliding along the ground?
a 50 kg block being pulled up and left
a 50 kg block being pushed down and right
a 50 kg block pushed directly leftwards
a 25 kg block being pulled directly rightwards
19
This graph showing an object moving with constant speed must have ____ on the x-axis and ____ on the y-axis
velocity, time
position, time
time, position
time, velocity
20
When an object is thrown upward, where is it moving the slowest?
release point
all are equal
highest point
landing point
21
Which will change if you go to the Moon?
your Mass
your Name
your Weight
22
The mass of a 500N object is
500
51
9.8
4900
23
The area defined by a velocity vs. time graph tells us...
time
displacement
velocity
acceleration
24
Which of the following in combination with wood has the highest coefficient of friction?
cannot be determined
cement
ice
tile
25
If a 10 N applied force moves a crate at constant speed, what is the force of friction on it?
0
10 N
5 N
20 N
26
Which of the following would NOT be in free-fall while falling?
anvil
greeting card
rock
bowling ball
27
If this object is moving to the right at a constant speed, then
the forces must be balanced
the forces must be unbalanced, with the larger on the left
it is impossible to tell which force is larger
the forces must be unbalanced, with the larger on the right
28
Which will land first, a projectile launched horizontally or one dropped from the same height?
Dropped one
Same time
Launched one
Depends on launch speed
29
The time it takes for an object to fall to the ground depends on its mass.
True
False
30
the slope of a velocity vs. time graph tells us...
acceleration
displacement
time
velocity
31
What is the final speed of a car accelerating from rest at 4.5 m/s
2
for 7.0 seconds?
11.5 m/s
31.5 m/s
2.5 m/s
110.3 m/s
32
Which is NOT always true about an object in equilibrium?
its acceleration is zero
it is at rest
its velocity is constant
the forces on it are balanced
33
When an object is thrown upward, where is its acceleration the smallest?
landing point
all are equal
highest point
release point
34
If an object expriences non-zero net force, this means
the forces are balanced and the object will have constant velocity
the forces are balanced and the object will accelerate
the forces are unbalanced and the object will have constant velocity
the forces are unbalanced and the object will accelerate
35
Which of the following is a vector?
velocity
time
distance
mass
36
If an object has a downward acceleration, what MUST the object be doing?
moving upward
can't tell
moving at constant speed
moving downward
37
A 45 kg wagon is accelerated at 3.4 m/s
2
, what is the net force acting on it?
13.2 N
129 N
1499 N
153 N
38
If a projectile is launched horizontally, which is true?
Δy = 0 m
vx= 0 m/s
vy,f = 0 m/s
vy,i = 0 m/s
39
In order to move forward, a swimmer pushes backward on the water. This shows Newton's ___ Law.
4th
1st
3rd
2nd
