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Physics Midterm Review

Total questions: 61

Worksheet time: 1hrs 14mins

Name
Class
Date
1.
What is force?
a)
A push exerted on an object
b)
A push or pull exerted on an object
c)
A pull exerted on an object
d)
Nothing
2.
a)
1st
b)
2nd
c)
3rd
3.
a)
1st
b)
2nd
c)
3rd
4.
What is the tendency of an object to resist a change in motion?
a)
coffee
b)
motion
c)
inertia
d)
gravity
5.

What does the solid line on this graph represent?

a)

Constant speed

b)

Acceleration

c)

At rest

d)

deceleration

6.

What is the line on this graph showing?

a)

moving away from starting point at a constant speed

b)

moving back towards the starting point at a constant speed

c)

acceleration (getting faster)

d)

deceleration (getting slower)

7.

An object at rest will remain at rest unless acted upon by an unbalanced force. Likewise an object in motion will remain in motion unless acted upon by an unbalanced force.

a)

Newton's 2nd law

b)

Newton's 3rd law

c)

Fig Newton's law

d)

Newton's 1st law

8.

how are acceleration and velocity related?

a)

acceleration is the rate of change of velocity in time.

b)

time is the rate of change in velocity in acceleration.

c)

they are not related.

d)

they are the same thing.

9.

how does mass affect acceleration?

a)

when one grows, the other shrinks, inversely

b)

directly proportional

c)

it doesn't affect it.

d)

mass will always make the acceleration faster.

10.
A net force of 15 N is exerted on an encyclopedia to cause it to accelerate at a rate of 5 m/s2. Determine the mass of the encyclopedia?
a)
 m = 3.0 kg
b)
m = 4.0 kg 
c)
m = 3.0 ml 
d)
m = 30.0 g
11.

A marble launcher shoots a marble horizontally from the height of 0.2 m above a horizontal floor. The marble lands on the floor 5 m away from the launcher. How long did the marble stay in the air?

a)

0.1 s

b)

0.2 s

c)

0.3 s

d)

0.4 s

12.

A marble launcher shoots a marble horizontally from the height of 0.2 m above a horizontal floor. The marble lands on the floor 5 m away from the launcher. What is the initial speed of the marble?

a)

5 m/s

b)

10 m/s

c)

15 m/s

d)

25 m/s

13.

A bowling ball is rolled off the side of a building that is 11 m tall with an initial velocity of 10 m/s. How long is the bowling ball in the air?

a)

1 s

b)

1.5 s

c)

2 s

d)

2.5 s

14.

Neglecting air resistance, what do you know about the horizontal velocity of a projectile?

a)

The horizontal velocity is constant.

b)

The horizontal velocity varies with time.

c)

The horizontal velocity is zero.

d)

The horizontal velocity varies with mass.

15.

What is the vertical velocity of a projectile at the top of its path?

a)

0 m/s

b)

0 ms20\ \frac{m}{s^2}  

c)

9.8 ms29.8\ \frac{m}{s^2}

d)

9.8 ms2-9.8\ \frac{m}{s^2}

16.

Neglecting air resistance, what is the horizontal acceleration of a projectile?

a)

0 m/s

b)

0 ms20\ \frac{m}{s^2}  

c)

9.8 ms29.8\ \frac{m}{s^2}

d)

9.8 ms2-9.8\ \frac{m}{s^2}

17.

Which of the following is independent of the horizontal component of a projectile velocity?

a)

The vertical component

b)

Displacement

c)

Time

d)

None of these

18.

What is the vertical acceleration of a ball dropped off a cliff, at two seconds ?

a)

19.6ms-19.6\frac{m}{s}  

b)

0ms20\frac{m}{s^2}

c)

9.8ms29.8\frac{m}{s^2}

d)

9.8ms2-9.8\frac{m}{s^2}

19.

Which of the following variables are NOT important in the study of a projectile motion?

a)

speed of the projectile

b)

mass of the projectile

c)

height of release

d)

time covered

20.

Which term represents the path of a projectile?

a)

displacement

b)

velocity

c)

speed

d)

trajectory

21.

___________ is a vector and is how far away an object is from its starting point.

a)

distance

b)

displacement

c)

velocity

d)

acceleration

22.

__________ is how far an object has traveled

a)

distance

b)

displacement

c)

velocity

d)

acceleration

23.

The motion of an object that travels in a straight line at a constant speed

a)

displacement

b)

relative velocity

c)

uniform motion

d)

frame of reference

24.

A car driving in a circle at 40 miles per hour does not change________ but does change_________

a)

speed, velocity

b)

velocity, speed

25.

True or False: If an object undergoes uniform acceleration its velocity does not change.

a)

True

b)

False

26.

Which picture shows a ball that would roll with increasing velocity and decreasing acceleration?

a)

A

b)

B

c)

C

27.

Which picture shows a ball that would roll with increasing velocity and constant acceleration?

a)

A

b)

B

c)

C

28.

Which picture shows a ball that would roll with increasing velocity and increasing acceleration?

a)

A

b)

B

c)

C

29.

Which portion of the graph shows decelerated motion?

a)

A-B

b)

B-C

c)

C-D

d)

D-F

30.

Which portion of the graph shows uniformly accelerated motion?

a)

A-B

b)

B-C

c)

C-D

d)

D-E

e)

E-F

31.

Which portion of the graph shows uniform motion (constant velocity)

a)

A-B

b)

B-C

c)

C-D

d)

D-E

32.

Which picture shows no motion (velocity=0)

a)

A-B

b)

B-C

c)

C-D

d)

E-F

33.

Which portion of the graph shows decelerated motion?

a)

G-H

b)

H-I

c)

I-J

d)

J-K

34.

Which portion of the graph shows uniformly accelerated motion?

a)

G-H

b)

H-I

c)

I-J

d)

J-K

35.

Which portion of the graph shows uniform motion (constant velocity)

a)

G-H

b)

H-I

c)

I-J

d)

J-K

36.

Which portion of the graph shows no motion (velocity is 0)?

a)

G-H

b)

H-I

c)

I-J

d)

J-K

37.
Question Image

Graph A ___(a)___motion. The ___(b)___ is constant and the___(c)___ is zero

a)

a

1.

uniform

b)

b

2.

velocity

c)

c

3.

acceleration

38.

Graph B represent ​ ​ (a)   motion. Over each second the velocity is ​ (b)  

Choose from the below words
accelerated
uniform
changing
stays the same
39.

The Road Runner steps off a ledge and drops to the ground in 0.50 seconds. What is the Road Runner's velocity the instant he hits the ground?

a)

3.5m/s

b)

6.4m/s

c)

1.8m/s

d)

4.9m/s

40.

The Road Runner steps off a ledge and drops to the ground in 0.50 seconds. How high is the cliff?

a)

4.9m

b)

1.2m

c)

3.5m

d)

6.4m

41.

In 2.8 s, a car increases its velocity from 20m/s to 25m/s. What is the acceleration of the car?

a)

8.7m/s2

b)

6.4m/s2

c)

4.9m/s2

d)

1.8m/s2

42.

How long will it take to stop a car if its driver starts breaking at a velocity of 32m/s and decelerates the car at 5.0m/s2?

a)

1.8s

b)

6.4s

c)

4.9s

d)

2.1s

43.

It takes 8.75 seconds to stop a car if its driver starts breaking at a velocity of 35m/s and decelerates the car at 4.0m/s2. How far will the car travel before it stops?

a)

153m

b)

307m

c)

86m

d)

215m

44.
In practice A of the figure, What is  the magnitude of the  resultant displacement?
a)
5 km 
b)
8 km
c)
11 km
d)
15 km
45.
In practice B of the figure, which displacement is the vertical component? 
a)
40 km, South
b)
40 km, North
c)
30 km, East
d)
30 km, West
46.
In practice B of the figure, which displacement is the vertical component? 
a)
40 km, South
b)
40 km, North
c)
30 km, East
d)
30 km, West
47.
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
48.
What is the Net Force?
a)
5 N to the right
b)
10 N to the right
c)
15 N to the right
d)
0 N
49.
How would you write 564,000,000 in scientific notation?
a)
5.64 x 10-7
b)
5.64 x 106
c)
5.64 x 108
d)
56.4 x 107
50.
Express the following in scientific notation:
.000457
a)
457 x 106
b)
457 x 10-6
c)
4.57 x104
d)
4.57 x 10-4
51.
How many significant figures does the following number have: 0.002040
a)
6
b)
4
c)
3
d)
2
52.
Describe the accuracy and precision of the image
a)
Accurate and Precise
b)
Accurate and not precise
c)
Not Accurate and Precise
d)
not accurate and not precise
53.
Describe the accuracy and precision of the image
a)
Accurate and Precise
b)
Accurate and not precise
c)
Not Accurate and Precise
d)
not accurate and not precise
54.

The tool used to measure temperature is the

a)

triple beam balance

b)

graduated cylinder

c)

thermometer

d)

meter stick

55.
What kind of instructions should you follow in the lab?
a)
verbal
b)
verbal & written
c)
written
d)
hieroglyphics 
56.
Where should you dispose of all chemicals?
a)
sink
b)
trash can
c)
fume hood
d)
where teacher tells you
57.

15 m = _____ mm

a)

15,000

b)

1,500

c)

0.015

d)

150

58.

How many hours are in a fortnight (2 weeks)?

1 week = 7 days; 1 day = 24 hours [Note: do not round answer]

a)

672 hours

b)

168 hours

c)

336 hours

d)

504 hours

59.

The Olympic record for the high jump is just over 2.6 yards. What is that distance in feet? (3 ft = 1 yd)

a)

0.867 ft

b)

7.8 ft

c)

8.07 ft

d)

8.27 ft

60.

Americans drink 5,604,000 gallons of sweet tea each day. How many liters is that? (1 gal = 3.79 L)

a)

21,200,000 L

b)

21,240,000 L

c)

21,207,190.2 L

d)

21,000,000 L

61.

A car travels 35m in 12s. What does the s represnt

a)

unit

b)

symbol

c)

place holder

d)

significant figure