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Test 8th Grade REVIEW

Total questions: 69

Worksheet time: 2hrs 33mins

Name
Class
Date
1.
One end of the rope is vibrated to produce a wave with a wavelength of .25 m.  The Frequency of the wave is 3.0 Hz.  What is the speed of the wave?
a)
3.00 m/s
b)
2.50 m/s
c)
.75 m/s
d)
1.25 m/s
2.
 A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?
a)
500 m/s
b)
50 m/s
c)
5 m/s
d)
0.5 m/s
3.
 A wave has frequency of 5 Hz and a speed of 25 m/s. What is the wavelength of the wave?
a)
25 m
b)
125 m
c)
5 m
d)
25 m/s
4.
A wave has wavelength of 10 m and a speed of 340 m/s. What is the frequency of the wave?
a)
34 m/s
b)
3400 Hz
c)
3400 m/s
d)
34 Hz
5.
crest to crest or trough to trough
a)
crest
b)
trough
c)
amplitude
d)
wavelength
6.

A guitar string vibrates with a frequency of 320 Hz. If the wavelength of the vibration is 0.23 meters what is the speed of the wave?

a)

320.23 m/s

b)

1391.3 hz

c)

73.6 m/hz

d)

73.6 m/s

7.

A wave with a frequency of 15 Hz has a wavelength of 3 m. What is the speed of this wave?

a)

0.2 m/s

b)

18 m/s

c)

5 m/s

d)

45 m/s

8.

A wave traveling at 230 m/s has a wavelength of 2.1 meters. What is the frequency of this wave?

a)

110 Hz

b)

110 m/s

c)

483 Hz

d)

483 m/s

9.

A wave has a frequency of 540 Hz and is traveling at 340 m/s. What is its wavelength?

a)

200 m

b)

0.63 m

c)

1.6 m

d)

183600 m

10.

A wave has a wavelength of 0.5 meters and a frequency of 120 Hz. What is the wave’s speed?

a)

240 m/s

b)

0.004 m/s

c)

30 m/s

d)

60 m/s

11.

Which is NOT a measurement of speed?

a)

50 km/hr

b)

500 Hz

c)

20 m/s

d)

30 mi/hr

12.

Which of the following could be a wavelength measurement?

a)

20 cm

b)

5 m/s

c)

440 Hz

d)

0.2 m/min

13.

A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?

a)

500 m/s

b)

50 m/s

c)

5 m/s

d)

0.5 m/s

14.

A wave has wavelength of 10 m and a speed of 340 m/s. What is the frequency of the wave?

a)

34 m/s

b)

3400 Hz

c)

3400 m/s

d)

34 Hz

15.
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
16.

In which graph is the runner not moving?

a)

graph A

b)

graph B

c)

graph C

d)

graph D

17.

Which graph indicates that one runner started 10 yards ahead of the other?

a)

graph A

b)

graph B

c)

graph C

d)

graph D

18.

In which graph are both runners moving at the same speed?

a)

graph A

b)

graph B

c)

graph C

d)

graph D

19.

Which of the following is defined as "how far an object travels?"

a)

position

b)

distance

c)

displacement

d)

vector

20.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
21.
The airplane flew at a speed of 300 miles per hour.
a)
Speed
b)
Velocity
22.

A baseball is thrown at 97 mph towards the North of the stadium.

a)

Speed

b)

Velocity

23.
Juan rode his bike west at a speed of 5 miles per hour.
a)
Speed
b)
Velocity
24.
The airplane flew toward Dallas at a speed of 300 miles per hour.
a)
Speed
b)
Velocity
25.
The car was traveling at a speed of 45 miles per hour.
a)
Speed
b)
Velocity
26.
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
27.
Velocity is both ____ and _____. 
a)
speed , direction 
b)
direction, mass
c)
volume, density 
d)
direction, magnitude 
28.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
29.

What is the motion of the car in the graph below?

a)

The car is slowing down

b)

The car is speeding up

c)

The car is traveling at a constant speed

d)

The car is not moving

30.

What is the motion of the car in the graph below?

a)

The car is moving quickly

b)

The car is not moving

c)

The car is moving towards the reference point

d)

The car is changing direction

31.

Describe what is happening with the car in the graph.

a)

This shows a car not moving

b)

This shows a car moving at a constant speed

c)

This shows a car changing direction

32.

Match the following

a)

100 m

1.

Distance

b)

50 m/s

2.

Speed

c)

2 s

3.

Time

d)

50 m/s to the West

4.

Velocity

33.
What is the speed of a man who runs 10 miles in 1 hr?
a)
20 miles
b)
10 m/min
c)
10 miles/hr
d)
20 hrs
34.
A train travels 25 km in 0.5 hrs. How fast is the train going?
a)
25 miles/hr
b)
5 miles/hr
c)
125 km/hr
d)
50 km/hr
35.
A car travels 30 miles/hr for 3 hours, calculate the distance it will travel.
a)
90 miles
b)
10 miles
c)
600 miles
d)
90 km
36.
A boat travels at 22 km/hr for 10 hrs, what distance will it travel?
a)
220 miles
b)
2.2 km
c)
220 km
d)
22 km
37.
A man runs at 10 m/min for 5 min, what distance will he run?
a)
10 miles
b)
10 m
c)
5 m
d)
50 m
38.
A speed boat travels 200 miles at a speed of 20 miles/hr. How much time will it take to travel the 200 miles?
a)
10 hrs
b)
10 miles
c)
400 hrs
d)
100 km
39.
Dave runs a 400 m race with a speed of 4 m/s. What time will it take him to finish the race?
a)
400 minutes
b)
100 minutes
c)
100 seconds 
d)
.25 seconds 
40.
Which of the following is a unit of time?
a)
km/hr
b)
hr
c)
km
d)
mi
41.
Which of the following is a unit of distance ?
a)
miles/hr
b)
hr
c)
km
d)
min
42.
Which of the following is a unit of distance ?
a)
miles/hr
b)
mi
c)
s
d)
min
43.
Which of the following is a unit of time?
a)
sec
b)
mi
c)
m/s
d)
km
44.
Which of the following is a unit of speed ?
a)
sec
b)
mi
c)
m/s
d)
min
45.
Ms. Cox drives her speed boat 22 km at 45 km/hr. How long will it take her to go the 22 km?
a)
48 hrs 
b)
0.48 hrs
c)
990 hrs
d)
45 min
46.
What is the equation to calculate time?
a)
time = speed/distance
b)
time = distance/speed 
c)
time = speed x distance 
d)
time = distance x speed
47.

the unit of acceleration is

a)

(m/s2)

b)

jouls

c)

m

d)

s

48.

A negative acceleration means that your object is  

a)

constant

b)

speeding up

c)

at rest

d)

slowing down

49.

A positive acceleration means that your object is

a)

at rest

b)

speeding up

c)

moving

d)

slowing down

50.

Which of the following is/are true about acceleration

a)

Acceleration is defined as the rate of change of velocity

b)

Its SI unit is m/s2

c)

Negative acceleration is called retardation

d)

none of the following

51.

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

52.
Acceleration is defined as the CHANGE in 
a)

the time it takes for one place to move to another place. 

b)

the mass of an object divided by the time interval.

c)

the distance divided by the time interval 

d)

the velocity divided by the time interval 

53.

A roller coaster accelerates from an initial speed of 6.0 m/s to a final speed 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

54.

Which of the following is an example of deceleration?

a)

a car approaching a stop sign and slowing down

b)

a plane increasing speed down the runway and then taking flight

c)

a roller coaster moving down a steep hill 

d)

an airplane cruising in a straight flight plan

55.

In Physics, acceleration can occur when:

a)

an object speeds up or slows down.

b)

only when a car speeds up.

c)

only when a car slows down.

56.

What do the following symbols represent: Vi and Vf?

a)

beginning velocity and ending velocity

b)

velocity in two different directions

c)

the velocity of two different objects

57.
If you are test-driving a Bugatti Veyron and you go from 0 km/s to 124 km/s in 3.7 seconds, what was your acceleration?
a)
33.5 m/s2
b)
0.03 m/s2
c)
-33.5 m/s2
d)
-0.03 m/s2
58.

A plane lands on the runway and slows from 758 km/hr to 30 km/hr in 0.013 hours. What is the plane's acceleration in m/s2?

a)

56,000 m/s2

b)

17857 m/s2

c)

-17857 m/s2

d)

-56,000 m/s2

59.

What is the final velocity of a rocket that travels for 4 seconds, has an initial velocity of 12 km/s and an acceleration of 2 km/s2?

a)

-4 km/s

b)

10 km/s

c)

20 km/s

d)

-10 km/s

60.
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
61.
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
62.

A correct measure of velocity would be

a)

300 m/hr

b)

7,800 m/sec

c)

40 kn/hr north

63.

Match the following graphs to the right description.

a)
1.

Speeding up

b)
2.

No acceleration (constant speed)

c)
3.

Slowing down

64.

To calculate the acceleration we use the formula.....

a)

a=Δvta=\frac{\Delta v}{t}

b)

a=Δdta=\frac{\Delta d}{t}

c)

a=Δv×ta=\Delta v\times t

d)

a=tΔva=\frac{t}{\Delta v}

65.

To calculate the time that a change in speed needed to take happen for a certain acceleration rate we use the formula.....

a)

 t=Δv×tt=\Delta v\times t 

b)

 t=Δvat=\frac{\Delta v}{a} 

c)

 t=Δv×at=\Delta v\times a 

d)

 t=aΔvt=\frac{a}{\Delta v} 

66.

To calculate the change in speed if we know the acceleration and the time it was accelerating for  we use the formula.....

a)

 Δv=at\Delta v=\frac{a}{t} 

b)

 Δv=ta\Delta v=\frac{t}{a} 

c)

 Δv=a×t\Delta v=a\times t 

67.

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

68.

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

69.
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

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