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WorksheetsPhysics Quiz 03 (Ch 02)
Total questions: 10
Worksheet time: 20mins
The graph below shows the motion of a dog pacing along a fence. Refer to the graph to answer the following questions.
For the five time intervals shown, during how many intervals does the dog have the same average velocity?
0
1
2
3
The graph below shows the motion of a dog pacing along a fence. Refer to the graph to answer the following questions.
For the five time intervals shown, during how many intervals does the dog pace at the same average speed?
0
1
2
3
The average acceleration is the ratio of which of the following quantities?
Δd:Δv
d:Δt
v:Δv
Δv:Δt
The speed of a car will increase if the car’s
initial velocity is positive and its acceleration is zero.
initial velocity is positive and its acceleration is positive.
initial velocity is positive and its acceleration is negative.
initial velocity is negative and its acceleration is positive.
The following questions refer to the following velocity-time graph of a jogger. The positive direction is away from the jogger’s home.
The jogger is at rest during which interval?
AB
BC
DE
EF
The following questions refer to the following velocity-time graph of a jogger. The positive direction is away from the jogger’s home.
During which of the following intervals does the jogger have a constant positive velocity?
BC
CD
DE
FG
An object in free fall
experiences no air resistance.
undergoes a downward acceleration.
has an acceleration with a magnitude of 9.81 m/s2 near Earth’s surface.
all of the above
The graph below shows the motion of four objects. Which of the following lines represent an object in free fall? Assume positive velocity is upward.
I only
II only
I and III
I and IV
The following questions refer to the following demonstration.
A red ball is dropped from rest and undergoes free fall. One second later a blue ball is dropped from rest and undergoes free fall.
The red ball’s change of velocity during the third second of the demonstration is Δv2–3.What is the change of velocity of the blue ball during this time interval?
½Δv2–3
Δv2–3
2Δv2–3
3Δv2–3
The following questions refer to the following demonstration.
A red ball is dropped from rest and undergoes free fall. One second later a blue ball is dropped from rest and undergoes free fall.
The displacement of the blue ball during the time interval 3.0 –4.0 s is equal to the displacement of the red ball in which of the following intervals of the demonstration?
0.0 –1.0 s
1.0 –2.0 s
2.0 –3.0 s
3.0 –4.0 s
