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Walker Physics Ch 1-3 study deck

Total questions: 66

Worksheet time: 50mins

Name
Class
Date
1.

A golf ball accelerates off a tee at 15m/s2, changing its velocity from 0m/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 roller coaster accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What's the acceleration?

a)

24 m/s2

b)

18 m/s2

c)

16 m/s2

d)

16 m/s

3.
A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.
a)
2.2m/s2
b)
7.0m/s2
c)
5.7m/s2
d)
70m/s2
4.
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 
5.

Why does a car accelerate as it rounds a corner at a constant speed?

a)

Its direction changes

b)

It doesn't

c)

It slows down

d)

Its speeds up

6.
Which graph represents the greatest acceleration?
a)
A
b)
B
c)
C
d)
D
7.

In each of the following cases, determine where the car has no acceleration.

a)

A car speeds up after a stoplight turns green.

b)

A car slows down as it approaches a red light

c)

A car with the cruise control set at 80 km/h going down a straight highway

d)

A car turning a curve at a constant speed

8.

When are you undergoing an acceleration in a car? (Choose all that are correct)

a)

speed up

b)

slow down

c)

make turns

d)

constant speed

9.

A fighter jet goes from +100 m/s to + 230 m/s in a time of 10 s. What was its acceleration?

a)

-10 m/s2

b)

+33 m/s2

c)

-23 m/s2

d)

+13 m/s2

10.

A negative acceleration means that your object is  

a)

constant

b)

speeding up

c)

at rest

d)

slowing down

11.

A positive acceleration means that your object is

a)

at rest

b)

speeding up

c)

moving

d)

slowing down

12.

As the ball falls towards the ground, its velocity

a)

zero

b)

decreases

c)

at rest

d)

increases

13.

A bus starts from rest and accelerates to 14 m/s in 4 s. What is the average acceleration of the bus?

a)

3.5 m/s2

b)

5.9 m/s2

c)

10.5 m/s2

d)

24 m/s2

14.
What is the force that pulls us towards the Earth?
a)
gravity
b)
weight
c)
friction
d)
mass
15.

The formula for calculating avg acceleration is 

(vf−vi)t\frac{\left(v_f-v_i\right)}{t}  True or False

a)

True

b)

False

16.

What does the slope of this graph represent?

(a)  

17.

Dorothy was initially at rest. She sped up to 9 m/s in 24 seconds. What was her acceleration?

a)

2.7 m/s2

b)

-2.7 m/s2

c)

-0.375 m/s2

d)

0.375 m/s2

18.

A rocket started at rest. After initiating the launch, it had an acceleration of 90 m/s2. How long did it take to reach a speed of 2430 m/s?

a)

13.5 s

b)

65610 s

c)

27 s

d)

32805 s

19.

A cheetah can accelerate from rest to a speed of 30.0 m/s in 7.00 s. What is its acceleration?

a)

4.29 m/s3

b)

4.29 m/s2

c)

4.29 m/s1

d)

4.29 m/s

20.
A student starts cycling from rest and reaches a speed of 12 m s-1 in 6 seconds. The distance travelled by him is
a)
18 m
b)
36 m
c)
54 m
d)
72 m
21.
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
22.

An object free falls for 3.5 seconds. How far does it fall?

a)

120.05 m

b)

17.15 m

c)

60.03 m

d)

34.3 m

23.
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
24.

A baseball is thrown up into the air. What happens to the acceleration as the ball rises in the air?

a)

the acceleration increases

b)

the acceleration decreases

c)

the acceleration remains constant

25.

A baseball is thrown up into the air. What happens to the velocity as the ball rises in the air?

a)

the velocity increases

b)

the velocity decreases

c)

the velocity remains constant

26.

The standard acceleration due to gravity (or standard acceleration of free fall),is the nominal gravitational acceleration of an object in a vacuum near the surface of the Earth. It is defined by standard as:

a)

9.8 m/s.

b)

9.8 m.

c)

9.8 m/s2.

d)

9.8 s.

27.

If an object is in free fall for three seconds, how fast will it be falling?

a)

9.8 m/s

b)

19.6 m/s

c)

29.4 m/s

d)

39.2 m/s

28.

Heavier objects free fall faster than lighter objects.

a)

True

b)

False

29.
A pumpkin is dropped from a 35 m building. What is its initial velocity (vi)?
a)
9.8 m/s2
b)
35 m
c)
0 m/s
d)
9.8 m/s
30.

A free falling objects falls under the influence of the

a)

force of air

b)

force of gravity

c)

force of resistance

d)

net force

31.

What is acceleration of an object flying upward during free fall?

a)

+ 9.8 m/s2

b)

- 9.8 m/s2

c)

+ 9.8 m/s

d)

-9.8 m/s

32.
Which would fall with greater acceleration in a vacuum—a leaf or a stone?
a)
the leaf
b)
the stone
c)
They would accelerate at the same rate.
d)
It is difficult to determine without more information.
33.
 The graph shows Ashley riding her bike to Maria's house. 
What is occurring from point A to point B?
a)
they are traveling at a constant speed
b)
they are decreasing in speed
c)
they stopped to take a break
34.
The graph shows Ashley riding her bike to Maria's house. 
What was occurring from point B to point C?
a)
She was increasing her speed.
b)
She stopped for 4 minutes
c)
She was decreasing in speed
35.
Speed =
a)
distance / time
b)
time / distance
c)
distance * time
36.
When something has speed in a certain direction it is called ___________.
a)
motion
b)
position
c)
velocity
d)
speed
37.
Which runner won the race?
a)
A
b)
B
c)
C
38.
The graph represents
a)
No motion
b)
Constant velocity
c)
Acceleration
d)
Deceleration
39.
The graph represents
a)
Acceleration
b)
No motion
c)
Deceleration
d)
Constant Velocity
40.
Which quantity is a vector?
a)
Displacement
b)
Distance
41.
Which graph represents the greatest acceleration?
a)
A
b)
B
c)
C
d)
D
42.

An airplane accelerates down a runway at 3.20 m/s/s for 32.8 s until is finally lifts off the ground. Determine the distance traveled before takeoff.

a)

1720m

b)

104.96m

c)

1270m

d)

2704m

43.

d

a)

distance / displacement

b)

direction

c)

velocity

d)

acceleration

44.

vi

a)

velocity

b)

initial velocity

c)

final velocity

d)

acceleration

45.

vf

a)

velocity

b)

initial velocity

c)

final velocity

d)

acceleration

46.

a

a)

velocity

b)

distance

c)

acceleration

d)

accuracy

47.

acceleration units

a)

m/s

b)

m/s2

c)

m2/s2

d)

m

48.

distance or displacement units

a)

m/s

b)

m/s2

c)

m2/s2

d)

m

49.

time units (that we use in physics)

a)

s

b)

min

c)

hr

d)

year

50.

a tiger travels 96 m in 8s. what is his velocity over the interval

a)

0.04m/s

b)

25m/s

c)

225m/s

d)

12m/s

51.

what is the formula to calculate speed.

a)

S=d/t

b)

S=t/d

c)

S=t x d^2

d)

S=d x t

52.

A car travels 100km. The journey takes two hours. The highest speed of the car is 80km/ h, and the lowest speed is 40km/ h. What is the average speed for the journey?

a)

40km/ h

b)

50km/ h

c)

60km/ h

d)

120km/ h

53.

An object is released from rest and falls to Earth. During its fall, the object is affected by air resistance. The air resistance eventually reaches a constant value. Which description about successive stages of the motion of the object is correct?

a)

constant acceleration, then constant deceleration

b)

constant deceleration, then zero acceleration

c)

decreasing acceleration, then constant deceleration

d)

decreasing acceleration, then zero acceleration

54.

On Earth, a ball is dropped and falls 2.0 m in a vacuum. The acceleration of the ball at 1.0 m is 10 m/s2 .

What is the acceleration of the ball at 0.5 m?

a)

5.0 m / s2

b)

10 m / s2

c)

15 m / s2

d)

20 m / s2

55.

An ice crystal falls vertically from a cloud. What happens to the acceleration of the ice crystal as it falls?

a)

It decreases because of air resistance.

b)

It decreases because of gravity.

c)

It increases because of air resistance.

d)

It increases because of gravity.

56.

An athlete runs at a speed of 8 m / s for 10 s, and then at a speed of 6 m / s for 12s. Which calculation gives the average speed of the athlete in m / s?

a)

8+62\frac{8+6}{2}  

b)

(8×10)+(6×12)22\frac{\left(8\times10\right)+\left(6\times12\right)}{22}  

c)

(8÷×10)+(6÷×12)22\frac{\left(8\div\times10\right)+\left(6\div\times12\right)}{22}   

d)

(10÷×8)+(12÷6)22\frac{\left(10\div\times8\right)+\left(12\div6\right)}{22}  

57.

A boy runs 400 m at an average speed of 4.0 m / s. He runs the first 200 m in 40 s. How long does he take to run the second 200 m?

a)

60 s

b)

66.7 s

c)

80 s

d)

140 s

58.

An object is moving with uniform deceleration. Which statement describes its motion?

a)

Its rate of change of speed is decreasing.

b)

Its speed is constant.

c)

Its speed is decreasing.

d)

Its speed is increasing.

59.

The velocity of an object increases from 30 m / s to 50 m / s in 5.0 seconds.

What is the average acceleration of the object?

a)

0.10 m / s2

b)

0.25 m / s2

c)

4.0 m / s2

d)

10 m / s2

60.

A car travels at an average speed of 60 km / h for 15 minutes. How far does the car travel in 15 minutes?

a)

4.0 km

b)

15 km

c)

240 km

d)

900 km

61.

A student investigates the motion of a ball rolling down a slope. The diagram shows the speed v of the ball at different times t.

Which statement describes the motion of the ball?

a)

The acceleration is not constant.

b)

The acceleration is negative.

c)

The speed is decreasing.

d)

The velocity is constant.

62.

A car is travelling at a velocity of 2.0 m / s. It accelerates at a constant 0.20 m / s2 for 2.5 minutes. What is the final velocity of the car?

a)

2.5 m / s

b)

5.2 m / s

c)

30 m / s

d)

32 m / s

63.

A ball falls from rest through the air towards the ground. The diagram shows two forces acting on the ball.

As the ball falls, the air resistance increases. Which statement is correct?

a)

The acceleration of the ball decreases.

b)

The acceleration of the ball increases.

c)

The speed of the ball decreases.

d)

The gravitational force on the ball decreases.

64.

Which statement about acceleration is correct?

a)

It is the force acting on an object when it is near to the Earth.

b)

It is the distance an object travels in one second.

c)

It is the force acting on an object divided by the distance it travels in one second.

d)

It is related to the changing speed of an object.

65.

A train begins a journey from a station and travels 60 km in a time of 20 minutes. What is the average speed of the train?

a)

3.0 m / s

b)

5.0 m / s

c)

50 m / s

d)

60 m / s

66.

A light object is dropped from rest. It falls a large distance vertically through air. How can the motion of the object be described?

a)

constant acceleration

b)

increasing acceleration

c)

decreasing acceleration and then moving at terminal velocity

d)

increasing acceleration and then moving at terminal velocity

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