Worksheets01d - Uniform Acceleration
Total questions: 25
Worksheet time: 27mins
Name
Class
Date
1.
A golf ball accelerates off a tee at 15 m/s2, changing its velocity from 0 m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?
a)
750 seconds
b)
35 seconds
c)
0.3 seconds
d)
3.3 seconds
2.
A drag racer accelerated from 0 m/s to 200 m/s in 5 s. What was the acceleration?
a)
0 m/s
b)
40 m/s2
c)
-40 m/s2
d)
40 m/s
3.
The SI unit for acceleration is
a)
mph
b)
ft/sec2
c)
m/s2
4.
initial v=5 m/s, final v=0 m/s, time is 20 seconds, how do you calculate the acceleration?
a)
(0-5)/20
b)
(5-0)/20
c)
5/20
d)
20/(5-0)
5.
A car accelerates from a standstill to 70 m/s in 10 seconds. What is the acceleration?
a)
0.7m/s2
b)
7m/s2
c)
14m/s2
d)
none of the above
6.
What is the acceleration of the object during the first 2 seconds?
a)
0.5m/s2
b)
1.0 m/22
c)
1.5 m/22
d)
2.0 m/s2
7.
What is happening in this graph from point B to C?
a)
The object is going down a hill.
b)
The object is returning to its starting location.
c)
The object is slowing down.
d)
The object is staying still.
8.
What is happening in the graph from point O to A?
a)
The object is moving SLOWLY
b)
The object is moving FAST
c)
The object is NOT moving
d)
The object is accelerating
9.
What is happening in this graph from point A to B?
a)
The object is accelerating.
b)
The object is not moving.
c)
The object is decelerating.
d)
The object is moving at a constant speed.
10.
The rate at which velocity changes is called
a)
motion
b)
average speed
c)
instantaneous speed
d)
acceleration
11.
Acceleration of an object happens when things ________
a)
slow down
b)
go faster
c)
change direction (turn)
d)
All of the above
12.
If a car is traveling forward at 15 m/s, how fast will it be going in 1.2 seconds if the acceleration is -10 m/s2?
a)
27 m/s
b)
3 m/s
c)
-27 m/s
d)
-3 m/s
13.
What is happening between 4 and 5 seconds?
a)
The object is slowing down in a negative direction.
b)
The object is slowing down in a positive direction.
c)
The object is slowing down in a negative direction.
d)
The object is speeding up in a negative direction.
14.
True or False...A negative acceleration means that the object is slowing down.
a)
True
b)
False
15.
What happens at 4 seconds?
a)
The object changes direction.
b)
The object is at the starting point.
16.
The rate that a car's velocity changes is its
a)
speed
b)
force
c)
gravity
d)
acceleration
17.
Acceleration is defined as the CHANGE in
a)
time it takes for one place to move to another place.
b)
velocity of an object.
c)
distance divided by the time interval
d)
velocity divided by the time interval
18.
A negative acceleration means that your object is _____.
a)
not accelerating
b)
not moving
c)
speeding up
d)
slowing down
19.
Which graph shows the object standing still?
a)
A
b)
B
c)
C
d)
D
20.
The SI unit for acceleration is
a)
mph
b)
ft/sec2
c)
m/s2
21.
When are you undergoing an acceleration in a car?
a)
speed up
b)
slow down
c)
make turns
d)
All of the above
22.
A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest. Find the acceleration.
a)
30 m/s
b)
24 m/s2
c)
9 m/s2
d)
81 km/hr
23.
The picture of the position vs. time graph shows an object that is...
a)
accelerating/speeding up
b)
moving at a constant speed
c)
not moving
d)
accelerating/slowing down.
24.
A dog runs with an initial speed of 7.5 m/s on a waxed floor. It slides to a stop in 15 seconds. What is the acceleration?
a)
-7.5 m/s
b)
-7.5 m/s2
c)
-0.5 m/s2
d)
7.5 mi//hr
25.
Why does a car accelerate as it round a corner at a constant speed?
a)
Its direction changes
b)
It doesn't
c)
It slows down
d)
Its speeds up
100 %
