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1 dimensional kinematics

Total questions: 32

Worksheet time: 8hrs 0mins

Name
Class
Date
1.

what is the speed of an object at rest?

a)

0.0 m/s

b)

1.0 m/s

c)

9.81 m/s

d)

-9.81 m/s2

2.

Acceleration is

a)

displacement

b)

the rate of change of displacement

c)

velocity

d)

the rate of change of velocity

3.

a vector is a quantity with

a)

magnitude and direction

b)

magnitude or direction

c)

magnitude only

d)

direction only

4.

An automobile driver puts on the brakes and decelerates from 30.0 m/s to zero in 10.0 s. What distance does the car travel?

a)

150 m

b)

196 m

c)

336 m

d)

392 m

e)

421 m

5.

A rock, released at rest from the top of a tower, hits the ground after 1.5 s. What is the speed of the rock as it hits the ground? (g = 9.8 m/s2 and air resistance is negligible)

a)

15 m/s

b)

20 m/s

c)

31 m/s

d)

39 m/s

e)

40 m/s

6.

A Cessna aircraft has a lift-off speed of 120 km/hr. What minimum constant acceleration does this require if the aircraft is to be airborne after a take-off run of 240 m?

a)

2.31 m/s2

b)

3.63 m/s2

c)

4.63 m/s2

d)

5.55 m/s2

e)

6.12 m/s2

7.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Not moving
8.
According to the graph how far does the person travel in the first 5 seconds?
a)
2 m
b)
10 m
c)
0 m
d)
5 m
9.
According to the graph how far does the person travel in the first 5 seconds?
a)
2 m
b)
10 m
c)
0 m
d)
5 m
10.

What does the triangle, delta, Δ\Delta  mean?

a)

change in speed

b)

change in velocity

c)

change in acceleration

d)

change in

11.
If a boomerang is thrown 20 m in a straight line and returns exactly to the spot it was thrown what is its displacement?
a)
20m
b)
40m
c)
0m
d)
-20m
12.

During which interval is the object moving at a constant velocity? (More than one answer choice possible)

a)

A to B

b)

B to C

c)

D to E

d)

E to F

e)

G to H

13.
What happens to the velocity of a ball as it is dropped off a cliff? 
a)
It decreases at a uniform rate 
b)
It increases at a uniform rate 
c)
It is constant 
d)
It increases at a non-uniform rate
14.
Which graph represents zero acceleration (constant velocity)?
a)
A
b)
B
c)
C
d)
D
15.
What is happening between 2 and 3 seconds?
a)
The object is not moving.
b)
The object is not accelerating.
c)
The object is slowing down.
d)
The object is speeding up.
16.
What is happening between 3 seconds and 4 seconds?
a)
The object is moving in a negative direction.
b)
The object is returning to its starting position.
c)
The object is slowing to a stop.
d)
The object is changing direction.
17.
What happens at 4 seconds?
a)
The object changes direction.
b)
The object is at the starting point.
18.
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.
19.
What is happening at C?
a)
Stationary
b)
Accelerating
c)
Fast steady speed; moving away from the starting position
d)
Slower steady speed; moving away from the starting position
20.
What is happening at D?
a)
Stationary
b)
Accelerating
c)
Fast steady speed; moving away from the starting position
d)
Slower steady speed; moving away from the starting position
21.
Which graph represents the greatest acceleration?
a)
A
b)
B
c)
C
d)
D
22.
Which graph represents zero acceleration (constant velocity)?
a)
A
b)
B
c)
C
d)
D
23.
Motion sensors recorded the following data about a runner during a cross-country race. During which segment of the race did the runner have the greatest speed?
a)
W
b)
X
c)
Y
d)
Z
24.

A coin released from rest from the top of a tower hits the ground after 1.5 seconds. What is the speed of the coin as it hits the ground?

a)

15 m/s

b)

21 m/s

c)

31 m/s

d)

39 m/s

25.

An object is thrown into the air at 60 m/s, straight up. What is its velocity at the highest point?

a)

0 m/s

b)

-9.8 m/s

c)

60 m/s

d)

-60 m/s

26.

A race car starting from rest accelerates uniformly at a rate of 4.90 m/s2. What is the car's speed after it has traveled 200 meters?

a)

1960 m/s

b)

62.6 m/s

c)

44.3 m/s

d)

31.3 m/a

27.
Which runner got a head start?
a)
red line runner
b)
blue line runner
28.

A dolphin swims 1.85 km/hr. How far has the dolphin swam after 0.60 hr?

a)

1.1 km

b)

2.5 km

c)

0.63 km

d)

3.7 km

29.

A toy car is given an initial velocity of 5.0 m/s and experiences a constant acceleration of 2.0 m/s 2 . what is the final velocity after 6.0s?

a)

10 m/s

b)

12 m/s

c)

16 m/s

d)

17 m/s

30.

Human reaction time is usually about 0.20 s. If your lab partner holds a ruler between your finger and thumb and releases it without warning, how far can you expect the ruler to fall before you catch it?

a)

4.0 cm

b)

9.8 cm

c)

16.0 cm

d)

19.6 cm

31.

A car decides to get on the freeway and accelerates from 12 m/s to 20 m/s over 4 seconds. What is it's acceleration?

a)

8 m/s2

b)

2 m/s2

c)

3 m/s2

d)

5 m/s2

32.

Can you accelerate while traveling at a constant speed?

a)

Yes, by changing the direction in which you travel

b)

No, as long as speed is the same, the acceleration is always zero.

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