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2nd Science Exam Revision

Total questions: 36

Worksheet time: 55mins

Name
Class
Date
1.
What is the formula for calculating speed?
a)
S= D x T
b)
S= T/D
c)
S= D/T
d)
S= D+T
2.
Calculate the speed of a train that traveled 400 miles in 5 hours.
a)
20 mph
b)
20 m/s
c)
80 mph
d)
80 m/s
3.

A plane flying 300 mph west toward California is an example of...

a)

Speed

b)

Velocity

c)

Acceleration

d)

Direction

4.

Choose every statement that is true of velocity.

a)

Velocity is speed only.

b)

Velocity is speed and direction.

c)

Velocity is a vector.

d)

Velocity has a direction.

5.

5.2 km/s west is an example of

a)

Speed

b)

Distance

c)

Time

d)

Direction

e)

Velocity

6.
Speed is
a)
the change in distance in a given time
b)
change in direction
c)
moving in a specific direction
d)
moving
7.

Gabriel sprinted down the hallway for a science project. He ran a total of 40 meters in 20 seconds. What was his average speed?

a)

2 meters per second

b)

20 meters per second

c)

40 meters per second

d)

10 meters for second

8.

This occurs when an object speeds up, slows down, or changes direction.

a)

Speed

b)

Velocity

c)

Acceleration

9.

Velocity = _______________

a)

Speed – direction

b)

Speed + direction

c)

Speed x direction

d)

Speed / direction

10.
Changes in our speed, direction or both are called _________.
a)
gravity
b)
changes
c)
acceleration
d)
displacement
11.
If you slow down on your bicycle, you accelerate.
a)
TRUE
b)
FALSE
12.
Changing the speed and changing the direction of your bicycle are both examples of acceleration.
a)
TRUE
b)
FALSE
13.
You ride your bike around the block at a constant speed of 11 km/h.
a)
Acceleration occurred because speed increased.
b)
Acceleration occurred because speed decreased.
c)
Acceleration occurred because you changed directions.
14.
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
15.
Total distance divided by total time is
a)
average speed
b)
constant speed
c)
instantaneous speed
d)
acceleration
16.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Not moving
17.
Which runner won the race?
a)
A
b)
B
c)
C
d)
It was a tie
18.
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
19.
What is the person doing from 5 seconds to 10 seconds?
a)
Walking 
b)
Running
c)
Standing Still 
d)
Walking Fast
20.
A car moves a distance of 1000 m with an average speed of 28 m/s.   Calculate the time.
a)
36 seconds
b)
28,000 seconds
c)
28 seconds
d)
972 seconds
21.
In which of the following graphs (click the image) are both runners moving at the same speed (note that graph c is the bottom right graph, and graph d is the bottom left graph)? 
a)
Graph A
b)
Graph B
c)
Graph C
d)
Graph D
22.
What is the speed of the red line?  
a)
4 m/s 
b)
16 m/s 
c)
32 m/s 
d)
2 m/s 
23.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
24.

Which section shows an object getting faster?

a)

A only

b)

B only

c)

A and C

d)

D

e)

C and D

25.

Which section shows an object decreasing in speed?

a)

A

b)

B

c)

C

d)

D

26.

What is the average speed for the first section of the graph?

a)

0 km/h

b)

30 km/h

c)

15 km/h

d)

-15 km/h

27.

During which time interval is the object not moving?

a)

9:00 to 11:00

b)

11:00 to 12:00

c)

12:00 to 12:30

d)

12:30 to 14:00

28.

Which of the following time intervals shows an object moving at a constant speed toward the reference point?

a)

9:00 to 11:00

b)

11:00 to 12:00

c)

12:00 to 12:30

d)

12:30 to 14:00

29.
Which graph represents the greatest acceleration?
a)
A
b)
B
c)
C
d)
D
30.
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
31.

Which runner stopped for a rest?

a)

Albert

b)

Bob

c)

Charlie

d)

None of them stopped

32.
The momentum of an object depends upon the object's ___________&_____________.  
a)
size and shape
b)
mass and speed
c)
mass and veloctiy
d)
mass and energy
33.

Why does a semi truck have more momentum than a car if they are both traveling at 60kph?

a)

Truck is more massive

b)

Truck is less massive

c)

Car is moving faster

d)

Car is more massive

34.

What is the momentum of a 3000 kg truck moving at 2.5 m/s?

a)

1200

b)

1200 kg*m/s

c)

7500 kg*m/s

d)

0.00083 kg*m/s

35.

What type of motion is this?

a)

Linear

b)

Circular

c)

Oscillation

d)

Reciprocal

36.

moving or tending to move toward a center...

a)

centripetal force

b)

centrifugal force

c)

Tangent

d)

Curvature

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