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Physics Mid-Term Quiz Flashcards | StudBud
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Physics Mid-Term Quiz
Physics Mid-Term Quiz
50 terms
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Answers
1
(T7) In addition to the values of the vector components, you also have to have their...
Graphs
Latitude and Longitude
Direction
None of the above
2
(T1) Which is an example of Science, Art and,Technology?
Spin Art (electricity, physics, art)
Racing (physics, technology)
Painting (art, science)
Singing (art)
3
(T9) Why will you weigh less on the moon?
There is less gravity therefore less force pushing down
There is more gravity pushing you down
None of the above
You take up less space on the moon
4
(T6) The difference between a vector and a scalar quantity is that a vector...
Has magnitude and direction.
Has speed and velocity.
None of them.
Has distance and time.
5
(T7) Resolve the following vector into its components. (48m/s at 220 degrees)
30.85m/s squared and 36.77m/s squared
40.85m/s squared and 46.77m/s squared
None of the above
33.77m/s squared and 25.67m/s squared
6
(T5) Which is false about how gravity affects the speed on an object?
Increases as an object falls and experiencs air resistance
It decreases a rising objects speed by 9.81m/s every second
None of the above
It acts equally on all objects falling in a vacuum
7
(T9) Inertia is defined as...
The tendency of an object to resist change
None of the above
Newtons 3rd law
The tendency of an object to want to change
8
(T7) Resolve the vector into both of its components (36m at 65 degrees to the horizontal)
15.21m and 32.63m
None of the above
12.45m and 20m
121.34m and 8m
9
(T7) When finding a vectors components, what mode do you have to be in on the calculator?
Radian
Degree
10
(T9) Which is a vector force or acceleration?
They both are
Force
None of the above
Acceleration
11
(T9) What does W in w=mg mean?
Walrus
Wheel
Weight
Water
12
(T1) How does Technology support the pursuit of Science?
Science does not need any Technology
New types of Technology is used to make new discoveries.
Technology makes new discoveries harder
Technology is not related to Science
13
(T3) How can an object be moving but have no acceleration?
If it's moving it has to have acceleration.
The object changes speed at a constant rate.
None of the above.
The object is not changing speed/direction.
14
(T8) Can vectors only describe velocity?
No
Yes
15
(T3) Which is an example of acceleration?
Moving Northeast.
None of the above.
When your on a highway and increase your speed.
When you are going 40mph on the highway.
16
(T1) Why is math the universal language of science?
The units of measurement are the same around the world
It is fun
It is undertstood by all cultures
It is easy
17
(T1) What is the body of knowledge that explains the world around us?
Nature
Science
Knowledge of how the world works
Physics
18
(T2) A car travels 500m in 20s. What is the average speed of the car?
0.04m/s
520m/s
10,000m/s
25m/s
19
(T2) What are 2 scalar quantities?
Momentum and Force
Acceleration and Velocity
Increase and Decrease In Temperature
Speed and Time
20
(T6) Which one is a vector quantity?
Mass
Acceleration
Speed
Temperature
21
(T2) What is the difference between speed and velocity?
There is no difference.
Speed is a vector quantity while Velocity is a scalar.
Speed does not deal with Direction like Velocity.
Velocity does not deal with Direction like Speed.
22
(T9) What is the mass on earth of a 25kg child?
245.25 newtons
25kg
23
(T10) The accleration of an object is__________related to the net force exerted upon it.
Indirectly
Not
None of them
Directly
24
(T10) What is the vector sum of all the individual forces acting upon an object?
Power
Pressure
Distance
Net Force
25
(T8) What is the value of the vertical speed component at the very top of the trajectory?
9.81m/s
0m/s
None of them
The same speed as it was before
26
(T5) A ball thrown in the air is caught at the same level which it was thrown, which is false?
Answers 1 and 3
None of the above
At the peak of its path, the ball's speed/acceleration is 0
The speed of the ball when thrown/caught is the same
27
(T3) What does it mean when an object is accelerating?
The object is moving.
It means it is increasing/decreasing speed and direction.
It is moving at a constant speed.
None of the above.
28
(T6) What is the acronym we used for vector problem solving?
MUD
YEP
DUM
BAD
29
(T3) In how many directions can an object move in one dimensional motion?
None of the above.
It cant move in any direction.
It can move in the positive/negative direction on both axis.
It can move 10 directions.
30
(T8) What does the horizontal component of a velocity vector indicate?
It indicates what direction an object is going on the x axis
It indicates how fast an object is going
None of the above
It indicates the objects acceleration
31
(T10) Is net force directly or inversely related to the mass of an object?
Directly
Inversely
32
(T6) Why do we study vectors in physics?
To show direction and magnitude of an object.
None of the above.
We have to.
To learn about the world around us.
33
(T5) Does the distance covered by an object in free fall increase every second?
No, the distance stays the same.
Yes time makes it increase.
Yes, as an object falls it increases speed.
None of the above.
34
(T3) How is instantaneous velocity similar to average velocity?
They aren't similar.
They both involve finding average velocity.
None of the above.
They both have the word velocity.
35
(T7) Resolve the following vector into its components. (72m at SE)
60.91m and 70.91m
None of them
50.91m and 50.91m
80.91m and 90.91m
36
(T2) Why do we explain motion in relation to a reference point?
If the reference point is moving, that means we are
This helps us to know if we are actually moving positions
Nothing stays still so we cant tell if we are moving
We don't need reference points
37
(T4) What is an example of negative acceleration?
There are no examples.
A plane taking off and increasing from 0m/s to 200m/s.
A plane landing and decreasing speed from 200m/s to 100m/s.
None of the above.
38
(T2) What is the ratio of change in velocity and change in time?
Change in velocity/Change in time.
Change in time/Change in acceleration.
Change in acceleration/Change in velocity.
Change in time/Change in velocity.
39
(T6) Why is vector addition commutative?
None of the above
It is not commutative
You always will end up going the same dist. between SP to EP
40
(T4) A jeep traveling at 33.84m/s skids to a stop in 4.25s. Determine the skidding distance.
29.83 meters
71.91 meters
121.42 meters
12 meters
41
(T4) What is negative acceleration?
The object is increasing in the negative space.
None of the above.
There is no such thing as negative acceleration.
The object is decreasing in the positive space.
42
(T1) Are all science discoveries made through the Scientific Method?
Yes, every discovery is made through Specific steps
No, they can be discovered by accident
Yes, if you don't follow the steps, your data is wrong
No, they can be discovered during different tests
43
(T5) Does having zero air resistance have an effect on free fall?
No
Yes
44
(T4) What is positive acceleration in linear motion?
Acceleration of an object.
None of the above.
It is when acceleration is increasing no matter what space.
There is no positive acceleration.
45
(T10) "Net force is related to mass and acceleration" is present in which of Newtons laws?
4th
3rd
1st
2nd
46
(T5) A feather and bowling ball are both dropped and hit at the same time, why? (no air resis)
They wont hit at the same time
There is nothing to affect the overall acceleration of them
Answers 2 and 4
None of the above
47
(T8) How does the velocity vector's arrow length correlate to the objects speed?
None of the above
The longer the arrow the slower the object is traveling.
The shorter the arrow the faster it is traveling.
The longer the arrow the faster the object is traveling.
48
(T4) Which is an example of an object experiencing positive acceleration?
A car going 60mph on the highway.
None of the above.
A car going 40mph,increasing to 60 in the positive direction
There is no such thing as acceleration.
49
(T10) Why can a water bottle be supported by a table?
None of the above
The table is exerting more force upward
Because the force pushing up and down cancel out and balance
The bottle is lighter than the table
50
(T8) What happens to the horizontal speed component at the very top of the trajectory?
It decreases by 9.81m/s
It changes
It increases by 9.81m/s
It remains the same
