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WorksheetsNyack Science 7 Midterm 2018
Total questions: 85
Worksheet time: 2hrs 18mins
Name
Class
Date
1.
The base unit of metric length.
a)
Meter
b)
Liter
c)
Kilogram
d)
milligram
2.
The basic unit of metric volume is called a_____.
a)
Kilogram
b)
milligram
c)
Liter
d)
milliliter
3.
How many cm's is in a meter?
a)
1000
b)
10
c)
100
d)
1
4.
The width of a kernel of corn would be about...
a)
4 cm
b)
4 mm
c)
4 m
5.
What is the volume?
a)
50.0 mL
b)
53.0 mL
c)
54.0 mL
6.
What is the length of the eraser?
a)
3 cm
b)
2 cm
c)
5 cm
d)
7 cm
7.
What is the volume of liquid in this graduated cylinder?
a)
40.0 mL
b)
40.3 mL
c)
43.0 mL
d)
44.0 mL
8.
What is the volume of the fish?
a)
18.0 cm3
b)
6.0 cm3
c)
38.0 cm3
9.
A possible explanation to a problem that has not yet been tested.
a)
data
b)
theory
c)
hypothesis
d)
fact
10.
This variable in an experiment is the one being deliberately changed by the scientist.
a)
dependent variable
b)
independent variable
c)
data
d)
control group
11.
The summary at the end of an experiment that explains the results.
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
12.
In a controlled experiment, how many independent variables can be worked with at a time?
a)
one
b)
none
c)
two or more
d)
how ever many makes sense.
13.
Which statement is an inference about this picture?
a)
The van is tan.
b)
The van ran into KFC.
c)
The driver was hungry.
d)
Red and white are part of the KFC building.
14.
Mr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.
a)
distance traveled by the ball
b)
height of the ramp
c)
mass of the ball
d)
weight of the ball
15.
Mr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the dependent variable.
a)
height of the ramp
b)
distance traveled by the ball
c)
mass of the ball
d)
weight of the ball
16.
When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?
a)
Dependent
b)
Independent
c)
Control
d)
Compound
17.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the dependent variable?
a)
Type of plant
b)
Water, apple juice, milk
c)
Plant growth
d)
Color of the plant's leaves
18.
This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted.
a)
experimental group
b)
control group
c)
data
d)
variables
19.
A distance vs. time graph shows an object's
a)
frame of reference
b)
speed
c)
acceleration
d)
favorite food
20.
LT4: The graph shows Ashley riding her bike to Maria's house.
What is occurring from point A to point B?
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
21.
LT5: The rate at which velocity CHANGES is:
a)
acceleration
b)
speed
c)
direction
d)
physics
22.
LT5: What is velocity?
a)
Time + Distance
b)
Speed in a given direction
c)
A fast dinosaur
d)
The direction a storm is moving
23.
The graph represents
a)
no motion
b)
Constant velocity
c)
Acceleration
d)
negative acceleration
24.
The graph represents
a)
no motion
b)
constant velocity
c)
acceleration
d)
negative acceleration
25.
The graph respresents
a)
No motion
b)
Constant Velocity
c)
Acceleration
d)
Deceleration
26.
An object is _____ if its position changes relative to another object.
a)
in motion
b)
at reset
c)
a frame of refence
d)
magical
27.
A place or object used for comparison to determine if another object is in motion is called a
a)
comparison point
b)
reference point
c)
point of view
d)
motion detector
28.
Speed =
a)
distance / time
b)
time / distance
c)
distance * time
29.
You walk 10 meters to math class in 20 seconds. Your average speed is
a)
2 m/s
b)
0.5 m/s
c)
200 m/s
d)
5 m/s
30.
What is the SI unit for speed
a)
Km
b)
s
c)
m/s
d)
m/s2
31.
What is the SI unit for acceleration?
a)
m/s
b)
m
c)
m/s2
d)
s
32.
The force that acts on an object to stop its motion.
a)
Speed
b)
Friction
33.
The force that pulls things toward earth.
a)
Speed
b)
Gravity
34.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement
35.
Alan travels 100km in 5hrs. Find his average speed in km/h
a)
5km/hr
b)
10km/hr
c)
50km/hr
d)
20km/hr
36.
A roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What's the acceleration?
a)
24 m/s2
b)
18 m/s2
c)
16 m/s2
d)
16 m/s
37.
What is a PUSH or PULL of an object?
a)
Motion
b)
Force
c)
Friction
d)
Gravity
38.
In the image, which of the person and their bikes will get down a hill faster?
a)
The boy because he is younger
b)
The woman because she is stronger
c)
The boy because he has a greater mass which applies a greater force
d)
The woman because she has more mass and applies a greater force
39.
If these boys are pulling with the same amount of force. What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
40.
If you pull the cord, what direction will the box move?
a)
Up
b)
Down
c)
Left
d)
Right
41.
What happens when one object moves an object over a distance?
a)
Inertia
b)
Work
c)
Displacement
d)
Magnetism
42.
What is the standard unit force is measured in?
a)
Newtons
b)
pounds
c)
grams
d)
meters
43.
Why does a rolling ball stop?
a)
Gravity
b)
Friction
c)
Waterfalls
d)
Sand
44.
a measure of inertia.
a)
mass
b)
terminal velocity
c)
normal force
d)
drag force
45.
"For every action, there is an equal and opposite reaction."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
46.
"An object in motion (or at rest) will to stay in motion (or at rest) until an outside force acts upon it."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
47.
The tendency of an object to resist changes in its motion is...
a)
inertia
b)
force
c)
acceleration
d)
velocity
48.
Any push or pull on an object.
a)
force
b)
velocity
c)
inertia
d)
momentum
49.
A force that opposes motion between a surface in contact with the atmosphere.
a)
air resistance
b)
gravity
c)
momentum
d)
terminal velocity
50.
In the picture, the vehicle will move because of...
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 9th Law
51.
What is the tendency of an object to resist a change in motion?
a)
coffee
b)
motion
c)
inertia
d)
gravity
52.
What is the net force?
a)
10 N
b)
0 N
c)
25 N
d)
1 N
53.
To compare the two pictures would require...
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 11th Law
54.
Which best explains why we are able to accelerate forward when starting to run?
a)
As one leg moves backward, it provides an equal and opposite force for the other foot to move forward.
b)
No acceleration takes place. Runners are always at a fixed velocity.
c)
The striking foot pushes backward against the ground. The friction with the ground provides an equal and opposite force forward.
d)
The runner's upper body quickly leans forward, causing the entire body to begin accelerating forward
55.
Calculate the net force.
a)
5 N
b)
10 N
c)
45 N
d)
500 N
56.
What Newtons law does this picture represent
a)
Newtons 2nd law
b)
Law of gravity
c)
Newtons 1st law
d)
Newtons 5th law
57.
A person steps out of the boat and onto the dock. As the person moves forward onto the dock, the boat moves backward. Which statement best describes the backward motion of the boat as the person steps forward?
a)
For every action there is an equal and opposite reaction.
b)
Every mass exerts a force on every other mass.
c)
An object at rest tends to stay at rest.
d)
Friction opposes the motion of an object.
58.
Pushing a child on a swing is easier than pushing an adult on the same swing.
a)
1st Law
b)
2nd Law
59.
Flagpole
a)
wedge
b)
pulley
c)
incline plane
d)
wheel and axle
60.
Stairs
a)
wedge
b)
pulley
c)
inclined plane
d)
wheel and axle
61.
This device
a)
wedge
b)
lever
c)
incline plane
d)
wheel and axle
62.
What type of simple machine is this?
a)
wheel and axle
b)
gear
c)
lever
d)
inclined plane
63.
A fishing pole is an example of a compound machine. What simple machines are used to make up this compound machine?
a)
lever, wheel and axle, pulley
b)
wheel and axle, inclined plane, pulley
c)
wheel and axle, pulley, inclined plane
64.
What could I do to this machine to increase the efficiency?
a)
oil or grease it
b)
make it sharper
c)
make the ramp shorter
65.
A gear is this type of simple machine?
a)
wheel and axel
b)
pulley
c)
level
d)
screw
66.
What is the work done by the man?
a)
0 J
b)
65 J
c)
6500 J
d)
0.0065 J
67.
What Simple Machine am I?
a)
a screw
b)
a wedge
c)
a nail
d)
inclined plane
68.
What Simple Machine am I?
a)
wheel & axle
b)
inclined plane
c)
pulley
d)
lever
69.
What Simple Machine am I?
a)
wheel & axle
b)
seesaw
c)
nail
d)
lever
70.
What Simple Machine am I?
a)
wedge
b)
screw
c)
pulley
d)
wheel & axle
71.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Electromagnetic
72.
What do we call a change from one form of energy to another?
a)
Energy form
b)
Energy transformation
c)
Kinetic energy
d)
Potential energy
73.
At which point is potential energy greatest
a)
W
b)
X
c)
Y
d)
Z
74.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
75.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
76.
What kind of energy is in a battery?
a)
Potential
b)
Kinetic
77.
What kind of energy?
a)
Thermal
b)
Electrical
c)
Mechanical
d)
Radiant
78.
What is the energy of position or shape that depends on weight and height, also called stored energy?
a)
Energy
b)
Kinetic energy
c)
Potential energy
d)
Sound energy
79.
What kind of energy is in a stretched rubber band?
a)
Potential
b)
Kinetic
80.
At which point is kinetic energy greatest?
a)
W
b)
X
c)
Y
d)
Z
81.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
82.
What energy is pulling an arrow back
a)
kinetic energy
b)
potential energy
c)
energy
83.
What kind of energy is represented in the picture?
a)
Thermal
b)
Chemical
c)
Sound
d)
Nuclear
84.
According to the Law of Conservation of energy, the amount of energy before and after a reaction must be the same. Which statement below is true?
a)
The total amount of energy is conserved
b)
The total amount of energy is less after a reaction
c)
The total amount of energy is more after a reaction
85.
Which energy transformation below matches?
Animals eating food?
Animals eating food?
a)
electrical to potential
b)
chemical to kinetic
c)
potential to chemical
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