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WorksheetsPhysical Science Semester 1 Review 1
Total questions: 20
Worksheet time: 18mins
Name
Class
Date
1.
What is the final step of the scientific method?
a)
Ask a question
b)
Form a hypothesis
c)
Gather information
d)
Draw conclusions
2.
In an experiment, what is the variable that you change directly?
a)
dependent variable
b)
independent variable
c)
artificial variable
d)
official variable
3.
2200 m = ________km
a)
220
b)
22
c)
2.2
d)
200
4.
4 km = ______ m
a)
400
b)
4000
c)
4444
d)
0.004
5.
25 dg =_________mg
a)
2.5
b)
.025
c)
25000
d)
2500
6.
8 mi = ___________ft
a)
800
b)
42240
c)
12880
d)
0.008
7.
If a runner runs around a 400 m track THREE times and ends up where she started, what DISTANCE has she run?
a)
0 m
b)
400 m
c)
800 m
d)
1200 m
8.
If a jogger runs around a 400 m track TWO times and ends up where he started, what is his DISPLACEMENT?
a)
0 m
b)
400 m
c)
800 m
d)
1200 m
9.
If a plane travels 48,000 m in 80 s, how fast is it going?
a)
3840000 m/s
b)
600 m/s
c)
80 m/s
d)
60 m/s
10.
How long will it take a Pony Express rider to travel 24,000 m if he is traveling at a speed of 12 m/s?
a)
48,000 s
b)
4,800 m
c)
200 s
d)
2,000 s
11.
A driver slows down from 45 m/s to 20 m/s in 5 s. What is his acceleration?
a)
5 m/s^2
b)
-5 m/s^2
c)
25 m/s
d)
-25 m/s^2
12.
A car starts from rest and accelerates at 6 m/s^2 for 11 s. What’s the final velocity?
a)
12 m/s
b)
17 m/s
c)
17 m/s^2
d)
66 m/s
13.
This is the force on an object due to gravity.
a)
force applied
b)
force normal
c)
force weight
d)
force friction
14.
This force results from the contact between two surfaces.
a)
force applied
b)
force normal
c)
force weight
d)
force friction
15.
This is the force that is exerted by the surface an object is resting on.
a)
force applied
b)
force normal
c)
force weight
d)
force friction
16.
What force is needed to accelerate a rocket at 60 m/s^2 if the rocket has a mass of 20,000 kg?
a)
3,000 N
b)
3,000 kg
c)
120,000 N
d)
333 N
17.
If your vehicle is exerting a force of 3,500 N while accelerating at 7 m/s^2 what is the mass of your vehicle?
a)
500 kg
b)
500 N
c)
24,500 kg
d)
3,493 N
18.
A positive acceleration is associated with an object _________.
a)
speeding up
b)
slowing down
c)
moving at a constant speed
d)
none of these
19.
A rock with a mass of 20 kg is in free fall. With what force does it hit the ground?
a)
180 kg
b)
196 N
c)
9.8 m/s^2
d)
9.8 N
20.
What is the first step of the scientific method?
a)
Ask a question
b)
Form a hypothesis
c)
Gather information
d)
Draw conclusions
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