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Lembar kerjaPhysics, Motion in One Dimension Review
Total soal: 45
Worksheet time: 48mins
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1.
Which of the following is a scalar quantity?
a)
displacement
b)
force
c)
velocity
d)
speed
2.
The slope of a two-dimensional position-time graph gives
a)
displacement.
b)
distance.
c)
velocity.
d)
acceleration.
3.
Displacement must always be measured from
a)
the y-axis.
b)
a reference point.
c)
infinity
d)
the current position of an object.
4.
On a position-time graph, the average velocity between two points is
a)
computed by change in position divided by change in time between the two positions.
b)
computed by change in time divided by change in position between the two positions.
c)
the horizontal displacement on the graph between the two positions.
d)
the vertical displacement on the graph between the two positions.
5.
Which of the following is not a vector quantity?
a)
acceleration
b)
displacement
c)
velocity
d)
speed
6.
The speedometer on your car measures
a)
average speed.
b)
average velocity
c)
instantaneous speed.
d)
instantaneous velocity.
7.
Which one of the choices does not give you displacement, velocity, or acceleration
a)
area under a velocity-time graph
b)
slope of a velocity-time graph
c)
slope of a position-time graph
d)
area under a position-time graph
8.
Which is a possible unit for acceleration?
a)
ft2/s2
b)
m/s
c)
ft/s2
d)
m2/s
9.
Does the speedometer in a car measure velocity or speed?
a)
velocity
b)
speed
c)
both
d)
neither
10.
You and your dog go for a walk to the park. On the way, your dog takes many side trips to chase squirrels or examine fire hydrants. When you arrive at the park, do you and your dog have the same displacement?
a)
yes
b)
no
11.
An object is observed to have a velocity of zero at an instant in time. Does the acceleration for the object also have to be zero?
a)
yes
b)
no
c)
it depends
12.
What is the formula to calculate speed?
a)
S = t/d
b)
S = d/t
c)
S = d x t
d)
S = t x d
13.
What is speed?
a)
how far you go
b)
how much distance is covered over a period of time
c)
how fast you accelerate
d)
the change in the location of a object
14.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
15.
A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?
a)
10 m/s
b)
1000 m/s
c)
100 seconds
d)
10 seconds
16.
Total distance divided by total time is
a)
average speed
b)
constant speed
c)
instantaneous speed
d)
acceleration
17.
The correct equation to calculate speed is
a)
distance/time
b)
time/distance
c)
distance x time
d)
distance/time2
18.
Shona cycles at an average speed of 8km/h. How far has she travelled if she cycles for 4 hours?
a)
55km
b)
32km
c)
43km
d)
32miles
19.
Bob runs from 4:50 pm until 5:20pm at an average speed of 7km/h. How far did he go?
a)
4.5km
b)
2.5km
c)
3.5km
d)
14km
20.
Alan travels 100 km in 5hrs. Find his average speed in km/h
a)
5km/hr
b)
10km/hr
c)
50km/hr
d)
20km/hr
21.
Joanna drives for 400km at an average speed of 80km/h. How long was her journey?
a)
Joanna's journey was 5hrs long
b)
Joanna's journey was 10hrs long
c)
Joanna's journey was 20hrs long
d)
Joanna's journey was 15hrs long
22.
John took 90 minutes to bicycle to his grandmother's house, a total of six kilometers. What was his speed (pay attention to units)?
a)
540 km/hr
b)
.066 km/hr
c)
4 km/hr
d)
9 km/hr
23.
Which of the following is a unit for acceleration?
a)
km/s
b)
m/s2
c)
mi/hr
d)
ft
24.
How far has the red runner gone in 3 seconds?
a)
40 yards
b)
10 yards
c)
30 yards
d)
20 yards
25.
Acceleration of an object happens when things ________
a)
slow down
b)
go faster
c)
change direction (turn)
d)
All of the above
26.
The graph below represents
a)
Speed
b)
Velocity
c)
Acceleration
d)
Deceleration
27.
The graph represents
a)
Acceleration
b)
No motion
c)
Deceleration
d)
Constant Velocity
28.
The graph represents
a)
No motion
b)
Constant velocity
c)
Acceleration
d)
Deceleration
29.
The graph respresents
a)
No motion
b)
Constant Velocity
c)
Acceleration
d)
Deceleration
30.
The graph represents
a)
no motion
b)
Constant velocity
c)
Acceleration
d)
negative acceleration
31.
The graph represents
a)
no motion
b)
constant velocity
c)
acceleration
d)
negative acceleration
32.
g is defined as
a)
acceleration of all objects in motion
b)
acceleration of objects moving vertically
c)
acceleration of gravity
d)
none of the above
33.
Which of the following is a unit for acceleration?
a)
km/s
b)
m/s2
c)
mi/hr
d)
ft
34.
How much time does it take for a car travelling at 65 miles/hour to travel 300 miles?
a)
4.6 hours
b)
0.22 hours
c)
19,500 hours
d)
none of the above
35.
What is the distance a ball falls after 1,2,3,4,5 seconds (assume g is rounded to 10 m/s2)?
a)
10, 20, 30, 40, 50 m (meters)
b)
5, 20, 45, 80,125 m (meters)
c)
5, 10,15, 20, 25 m (meters)
d)
10, 25, 60, 90,120 m (meters)
36.
What is the velocity of a ball that has been dropped off a cliff after 1 , 2, 3, 4, and 5 seconds? (assume g is rounded to 10 m/s2)?.
a)
10, 20, 30, 40, 50 m/s
b)
5, 10, 15, 20, 25 m/s
c)
5, 20, 45, 80,125 m
d)
10,10,10,10,10 m/s
37.
What is the acceleration of a ball that is dropped off the side of a cliff after 1,2,3,4,5 seconds? (assume g is rounded to 10 m/s2)
a)
5,10,15, 20, 25 m/s2
b)
10, 20, 30, 40, 50 m/s2
c)
5, 20, 45, 80, 125 m/s2
d)
10,10,10,10,10 m/s2
38.
A ball is thrown upward in the air with an initial velocity of 40 m/s. How long does it take to reach back to the point it was thrown from?
a)
4 seconds
b)
2 seconds
c)
6 seconds
d)
8 seconds
39.
A ball is thrown up in the air with an initial velocity of 40 m/s. What is the ball's velocity after 2 seconds?
a)
0 m/s
b)
20 m/s traveling upward
c)
20 m/s traveling downward
d)
40 m/s traveling downward
40.
In free fall, where does an object have the slowest speed?
a)
Vi
b)
Vf
c)
Vtop
d)
More than one is correct
41.
What is terminal velocity?
a)
The highest speed an object reaches because of unbalanced forces
b)
The highest speed an object reaches because air resistance offsets gravity in the real world
c)
When an object reaches its final velocity of zero
d)
Only happens in physics world
42.
When an object falls in physics world, what happens?
a)
It accelerates at a constant rate until it hits the ground
b)
It accelerates at a non-constant rate until it hits the ground
c)
It accelerates at a constant rate until it reaches terminal velocity
d)
It accelerates at a non-constant rate until it reaches terminal velocity
43.
Which would hit the ground first if dropped from the same height in a vacuum—a feather or a metal bolt?
a)
the feather
b)
the metal bolt
c)
They would hit the ground at the same time.
d)
They would be suspended in a vacuum.
44.
A ball is thrown upwards and caught when it comes back down. In the absence of air resistance, the speed of the ball when caught would be
a)
less than the speed it had when thrown upwards.
b)
more than the speed it had when thrown upwards.
c)
the same as the speed it had when thrown upwards.
45.
If you throw a baseball straight up, what is its velocity at the highest point?
a)
9.8 m/s2
b)
9.8 m/s
c)
0 m/s2
d)
0 m/s
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