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Unit 1 Test: Forces of Motion, Gravity and Magnetism (2nd)

Total questions: 60

Worksheet time: 1hrs 26mins

Name
Class
Date
1.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
2.
A testable explanation to a problem that has not yet been tested. 
a)
data
b)
theory
c)
hypothesis
d)
fact
3.
Testing a hypothesis often involves a(n):
a)
answer
b)
experiment
c)
problem
d)
safety check
4.

What is the first step in the scientific method?

a)

Data

b)

Conclusion

c)

No Horse Play

d)

Observe a problem

5.
Will a construction paper air plane fly faster than an airplane made from notebook paper? Choose the best hypothesis.
a)
If I make a paper airplane from notebook paper, then it will fly faster than construction paper.
b)
Yes.
c)
No.
d)
I think the construction paper air plane will fly faster.
6.
This is the group that we will compare our experimental group to. This group stays "normal."
a)
Control Group
b)
Experimental Group
c)
 Normal Group
d)
Weird Group
7.

This is the group that is affected by the variable or the group that is changed.

a)

Control Group

b)

Experimental Group

c)

Changed Group

d)

Cool Group

8.
Dependent variable means
a)
the scientist controls what to test
b)
educated guess
c)
ask a question
d)
what is being measured
9.
If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?
a)
True
b)
How fast you get to school
c)
Riding a bike or walking
d)
False
10.
Air is matter. We found that the weight of the ball increases by .5lbs each time we pumped more air into it. This shows that air has weight, one of the characteristics of matter.
Which sentence is the claim?
a)
Air is matter.
b)
We found that the weight of the ball increases by .5lbs each time we pumped more air into it.
c)
This shows that air has weight, one of the characteristics of matter.
11.
Air is matter. We found that the weight of the ball increases by .5lbs each time we pumped more air into it. This shows that air has weight, one of the characteristics of matter.
Which sentence is the evidence?
a)
Air is matter.
b)
We found that the weight of the ball increases by .5lbs each time we pumped more air into it.
c)
This shows that air has weight, one of the characteristics of matter.
12.
Air is matter. We found that the weight of the ball increases by .5lbs each time we pumped more air into it. This shows that air has weight, one of the characteristics of matter.
Which sentence is the reasoning?
a)
Air is matter.
b)
We found that the weight of the ball increases by .5lbs each time we pumped more air into it
c)
This shows that air has weight, one of the characteristics of matter.
13.
Which has more momentum: a car stopped at a red light or a bike moving at 15 mph?
a)
car
b)
bike
c)
they are equal
d)
cannot determine using the info provided
14.
In any collision (crash) the ______ is ALWAYS constant
a)
Total Momentum
b)
total speed
c)
total Velocity
d)
Energy
15.
Which object listed below has the greatest momentum?
a)
A 0.05 kg object rolling at 0.2 m/s.
b)
A 0.15 kg object rolling at 2 m/s.
c)
A 0.15 kg object rolling at 1 m/s
d)
A 0.4 kg object rolling at 2 m/s.
16.

The Law of Conservation of Momentum states:

a)

The total momentum before a collision is equal to the total momentum after a collision.

b)

The total momentum before a collision is greater than the total momentum after a collision.

c)

The total momentum before a collision is less than the total momentum after a collision.

d)

The total momentum before a collision is not related to the total momentum after a collision.

17.

According to Newton's Laws, for every action there is an ....

a)

equal and opposite reaction.

b)

equal and parallel reaction.

c)

unequal and opposite reaction.

d)

unequal and unrelated reaction.

18.
If net force acting on object is 0, then the force is considered to be..
a)
Balanced
b)
Unbalanced
c)
Equal in Direction
d)
Distance/Time
19.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
20.
The definition of momentum is
a)
Mass in Motion
b)
The size of an object
c)
The velocity of an object
d)
A comparison between two objects
21.
Which type of force(s) will cause a change in an object's motion?
a)
gravity
b)
zero net force
c)
balanced forces
d)
unbalanced forces
22.
When two objects collide, the Pbefore is ____________ the Pafter.
a)
more than 
b)
less than 
c)
equal to
d)
unrelated to
23.
What is Newton's First Law
a)
F=ma
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion. 
d)
Friction 
24.
When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?
a)
The cannon moving forward
b)
The cannonball moving forward
c)
The cannon moving backward
d)
The cannonball moving backward
25.
A _______ is a push or pull.
a)
Newton
b)
Acceleration
c)
Momentum
d)
Force
26.
What is the definition of "weight"?
a)
the force in which gravity pulls on an object
b)
the time it takes to get on a ride 
c)
the amount of matter in an object
d)
the size of an object
27.
 267.5 N unbalanced force applied to push a stuffed chair across the room, causing an acceleration of 4.2 m/s2. What is the mass of the chair?
a)
26.75 kg
b)
63.69 kg 
c)
263.3 kg 
d)
1123.5 kg
28.
An empty truck and a fully loaded truck are next to each other at a traffic light. When the light turns green, the lighter truck increases speed more quickly. Which of these best explains this situations
a)
Newton's first law
b)
Newton's second law
c)
Newton's third law
d)
Conservation of momentum
29.
F = MxA
a)
1st
b)
2nd
c)
3rd
30.
If a force of 50 Newton's was applied to an object with a mass of 500 grams, what will the object's acceleration be?
a)
10 m/s^2
b)
.1 m/s^2
c)
100 m/s^2
d)
1 m/s^2
31.
Two objects are attracted to each other with 36 N of gravitational force.
What would the force between them be if the distance between them were doubled?
a)
9
b)
18
c)
72
d)
144
32.
Two factors effecting the magnitude of the force of gravity between 2 objects are...
a)
mass and distance 
b)
mass and matter
c)
distance and weight 
d)
weight and mass
33.
Complete the following statement: The farther away two planets are the _______ the gravitational force between them.
a)
more
b)
same
c)
dosen't matter
d)
less
34.

Which configuration will result in the greatest gravitational force?

a)

small masses far apart

b)

large masses far apart

c)

small masses close together

d)

large masses close together

35.

A 500 kg asteroid is located 3.4 x107m from the center of Earth. The mass of Earth is 6.0x1024 kg. What is the gravitational force between the asteroid and Earth?

F = GMm/r2

G= 6.67 x 10-11

a)

1.73 x 102 N

b)

4.63 x 105 N

c)

2.94 x 103 N

d)

6.42 x 104 N

36.

The law of universal gravitation is credited to whom?

a)

Einstein

b)

Galileo

c)

Darwin

d)

Newton

37.

The Coulomb is the unit for:

a)

Charge

b)

Force

c)

Distance

d)

Mass

38.

According to Coulomb's Law, when the distance increases, the electrostatic force ____________; we call this relationship ____________ proportional.

a)

decreases; directly

b)

decreases; inversely

c)

increases; inversely

d)

increases; directly

39.

What happens to the force between two charged objects when you double the distance between them?

a)

it doubles

b)

it is cut in half

c)

it quadruples

d)

it is cut by 1/4

40.

If one of the charges doubles, what happens to the force?

a)

it doubles

b)

it gets cut in half

c)

it quadruples

d)

it is cut by 1/4

41.
What equation is this:
FE= (k*q1*q2) / r2 
a)
Coulombs law
b)
Ohms law
c)
Newtons law
42.

The area around a magnet is called the .....

a)

attraction zone

b)

work area

c)

magnetic field

d)

hot zone

43.
The picture is an example of an:
a)
Electric circuit
b)
Electromagnet
c)
Electric nail
d)
Electric power cell
44.

To make this electromagnet stronger you could:

a)

use less wire

b)

have fewer wire coils around the nail

c)

have more wire coils around the nail

d)

use a plastic core

45.
Why does a compass needle point north?
a)
The compass is a bar magnet
b)
Because north is up
c)
Because it's magic
d)
It lines up with the Earth's magnetic field
46.
When you put the poles of two magnets together they will either attract or repel each other.  Which of these sentence is correct?
a)
If the two poles are the same the magnets repel each other.
b)
If the two poles are the same the magnets attract each other.
c)
If the two poles are different the magnets repel each other.
47.

A _______________ is a current-carrying coil of wire with many loops.

a)

magnet

b)

electromagnet

c)

solenoid

d)

compass

48.

Which of the following is not a good conductor?

a)

Copper

b)

Silver

c)

Aluminium

d)

Plastic

49.

A current is produced when _______________ flow in a circuit.

a)

protons

b)

neutrons

c)

electrons

d)

nucleons

50.

In any collision (crash) the ______ is ALWAYS constant

a)

Total Momentum

b)

total speed

c)

total Velocity

d)

Energy

51.
Two factors effecting the magnitude of the force of gravity between 2 objects are...
a)
mass and distance 
b)
mass and matter
c)
distance and weight 
d)
weight and mass
52.
Planets orbit the Sun in a shape called a(n)
a)
circle
b)
ellipse
c)
focus
d)
perihelion
53.
An ellipse is drawn around two points called
a)
aphelion
b)
perihelion
c)
foci
d)
axis
54.
The place where a planet is closest to the Sun as it orbits the Sun is called the
a)
perihelion
b)
aphelion
55.
The place where a planet is farthest away from the Sun in its orbit around the Sun is called the
a)
aphelion
b)
perihelion
56.
Where is the planet moving faster
a)
Position A to B
b)
Position B to C
c)
Position H to I
d)
Position I to J
57.
What is true about the area between points A, B and the Sun, and the area between points H, I and the Sun?
a)
The area between A, B and the Sun is the largest.
b)
The area between H, I and the Sun is the largest
c)
Both areas are equal in size
d)
There is not enough information to determine the areas
58.
What has an eccentricity of zero
a)
a straight line
b)
a large ellipse
c)
a circle
d)
a small ellipse
59.
The "Law of Harmonies" is which of Kepler's Laws?
a)
1st
b)
2nd
c)
3rd
d)
4th
60.
Calculate the eccentricity for the following orbit. 
a)
1.6
b)
0.8
c)
0.6
d)
1.2

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