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Physics Unit 1 Exam Review

Total questions: 46

Worksheet time: 2hrs 18mins

Name
Class
Date
1.

If 1 in. = 2.54 cm how many centimeters is 11 inches?

a)

4.33

b)

.23

c)

27.9

d)

12

2.
150 in = ________ ft ___________in
a)
12 ft 6 in
b)
12 ft 1 in
c)
10 ft
d)
15 ft 3 in
3.
You know 1000 mg = 1 g.  Convert 2.5 grams into milligrams.
a)
25 mg
b)
25,000 mg
c)
250 mg
d)
2500 mg
4.
5000 millimeters = ____ meters
a)
5
b)
50
c)
500
d)
25
5.
1800 milligrams = ___ grams
a)
1.8
b)
18
c)
180
d)
.18
6.
What is the metric base unit for mass
a)
ounce
b)
pounds
c)
grams
d)
kilograms
7.
convert 650 m to km
a)
6.5
b)
0.65
c)
65
d)
0.065
8.
1 cm = ________mm
a)
1
b)
100
c)
10
d)
1000
9.
How many significant figures does the following number have: 0.002040
a)
6
b)
4
c)
3
d)
2
10.
How many significant figures does the following number have: 0.998005
a)
9
b)
10
c)
6
d)
5
11.
Round 0.010229 to four sig figs
a)
1022
b)
1023
c)
0.01023
d)
0.01022
12.
Round 1047.78 to three sig figs
a)
104
b)
105
c)
1050
d)
1050.00
13.
How would you write 4.3756 x 104 in standard form?
a)
437,560,000
b)
0.00043756
c)
43,756
d)
4,3756
14.

How would you write 0.0005 in scientific notation?

a)

50 x 105

b)

5 x 10-4

c)

5 x 10-3

d)

.5 x 103

15.
Which of the following is correct scientific notation?
a)
20.35 x 104
b)
.2035 x 104
c)
2035 4
d)
2.035 x104
16.
Distance and direction of an object's change in position from a starting point
a)
displacement
b)
distance
c)
motion
d)
reference point
17.
 Jermaine runs exactly 2 laps around a 400 meter track. What is the displacement?
a)
800
b)
400
c)
0
d)
200
18.
Bill runs 400 meters to Andy's house, turns around, and runs 400 meters back home.  What is Bill's distance?
a)
0 meters
b)
400 meters
c)
800 meters
d)
1600 meters
19.
Which of the following is NOT a scalar quantity?
a)
time
b)
distance
c)
displacement
d)
speed
20.
Vector quantities need both a magnitude and a _____.
a)
distance
b)
displacement
c)
direction
d)
velocity
21.
Displacement and distance are always the same number.
a)
True
b)
False
22.

A person walks 50 meters directly north, stops, and then travels 32 meters directly south. What is their displacement?

a)

82 meters N

b)

18 meters N

c)

28 meters S

23.

What is speed?

a)

how far you go

b)

the distance covered over a period of time

c)

how fast you accelerate

d)

the change in the location of a object

24.

What is velocity?

a)

the quickness of an object

b)

the location of an object

c)

acceleration

d)

the displacement over the change in time

25.
Speed is a 
a)
scalar
b)
vector
26.
Velocity is a
a)
scalar
b)
vector
27.
On a distance vs. time graph, the steeper the slope _____
a)
the slower the speed
b)
the faster the speed
c)
less acceleration
d)
greater acceleration
28.
LT4: 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
29.
LT4: 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
30.

A heavy object and a light object are dropped from the same height. Which will hit the ground first? (assume they're in a vacuum)

a)

Heavier object

b)

Lighter object

c)

Both at same time

31.
Which of the following is a unit for acceleration?
a)
km/s
b)
m/s2
c)
mi/hr
d)
ft
32.
The slope of a velocity vs. time graph represents
a)
Change in Distance
b)
Change in Displacement
c)
Acceleration
d)
Speed
33.
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 
34.
Why does a car accelerate as it round a corner at a constant speed?
a)
Its direction changes
b)
It doesn't
c)
It slows down
d)
Its speeds up  
35.

A skateboarder with an initial position of 1.5 m moves with a constant velocity of 3.0 m/s. What is the position of the skateboarder at t=2.5 seconds?

a)

10 m

b)

9 m

c)

8 m

d)

7 m

36.
A car accelerates from a standstill to 70 m/s in 10 seconds.  What is the acceleration?
a)
0.7m/s2
b)
7m/s2
c)
14m/s2
d)
none of the above
37.
A car is traveling at 21.0 m/s. It slows to a stop at a constant rate over 5.00 s. How far does the car travel during those 5.00 seconds before it stops? 
a)
4.20 m
b)
52.5 m
c)
105 m
d)
158 m
38.
Which section of the graph shows constant velocity?
a)
AB
b)
BC
c)
EF
d)
GH
39.
Which section of the graph shows acceleration?
a)
AB
b)
BC
c)
EF
d)
FG
40.
What kind of acceleration is shown here?
a)
positive
b)
negative
c)
none
d)
varies
41.
A free falling objects falls under the influence of 
a)
force of air
b)
force of gravity
c)
force of resistance
d)
force of 
42.

Approximately how far can an object fall in 5 seconds?

a)

5 m

b)

25 m

c)

50 m

d)

125 m

43.

An arrow is shot vertically upward at 25 m/s. What is the velocity at maximum height?

a)

0 m/s

b)

10 m/s

c)

625 m/s

d)

1.25 m/s

44.

A bowling ball is dropped from planet X. It takes 6 seconds to fall a distance of 50 m. What is it's acceleration?

a)

10 m/s2

b)

2.78 m/s2

c)

300 m/s2

d)

8.33 m/s2

45.

A car starts from rest and accelerates at 8 m/s^2. How far will it travel in 4 seconds?

a)

32 m

b)

2 m

c)

64 m

d)

256 m

46.

From rest, a ball rolls 8 m down a hill in 2.5 seconds where it bumps into a person. What is the speed of the ball right before it hits the person?

a)

3.2 m/s

b)

0.3 m/s

c)

1.6 m/s

d)

6.4 m/s

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