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WorksheetsSemester Test Review 1
Total questions: 108
Worksheet time: 54mins
Name
Class
Date
1.
What is an observation?
a)
A scientific statement based on ideas
b)
Using your senses to notice what is going on around you
c)
The question that you want an answer to.
d)
To be unaware of your surroundings
2.
Identify the independent variable in the following experiment: If I give the same type of plants different liquids (pop, juice, water, monster), will they still grow?
a)
The same plants; the same amount of liquid
b)
Plants given water
c)
How much the plants grow
d)
Different liquids
3.
"The potato weighs 174.95 g." is an example of a(n)
a)
qualitative observation
b)
inference
c)
quantitative observation
d)
average
4.
Which type of variable is the data you measured during an experiment.
a)
controlled variable
b)
independent variable
c)
dependent variable
5.
A student wants to test the effects of type of exercise on heart rate. What is the dependent variable?
a)
amount of exercise
b)
heart rate
c)
type of exercise
d)
time of day exercise occurs
6.
What needs to be constant in the following experiment: Does the amount of coffee students drink increase their test scores?
a)
test scores
b)
same test
c)
test scores without drinking coffee
d)
amount of coffee
7.
What type of observation is this?
The kid is wearing blue and red.
a)
qualitative observation
b)
quantitative observation
8.
What type of variable must remain the same for the entire experiment?
a)
independent variable
b)
controlled variable
c)
dependent variable
9.
In an experiment you change or manipulate this type of variable.
a)
dependent variable
b)
controlled variable
c)
independent vaiable
10.
What type of observation is this?
There are 7 kids playing basketball.
a)
qualitiative observation
b)
quantitative observation
11.
Investigating an object closely.
a)
hypothesize
b)
observations
c)
looking
d)
seeing
12.
Observations using the 5 senses.
a)
observations
b)
quantitative observations
c)
experimenting
d)
qualitative observations
13.
Observations like the color or texture of an object are __________________ observations.
a)
quantitative
b)
scientific
c)
qualitative
d)
operational
14.
What is the independent variable in this experiment?
Will a person wake up earlier if they drink water?
a)
the water
b)
the time it takes for a person to wake up
c)
the person
d)
none of these
15.
What is the dependent variable in the following experiment: Does the amount of coffee students drink increase their test scores?
a)
amount of coffee
b)
test scores
c)
test scores without drinking coffee
d)
same test
16.
What is the dependent variable (effect) in this experiment?
"Does eating breakfast improve test scores?"
a)
what time you get up in the morning
b)
how tasty the breakfast is
c)
eating breakfast or not
d)
the grade you got on the test
17.
Explaining or interpreting the observations is called _______?
a)
observation
b)
question
c)
inference
d)
average
18.
An observation is different from an inference since:
a)
Inferences always lead to experiments, observations do not
b)
You make thousands of observations daily, but less inferences
c)
Inferences can be proven, observations cannot be
d)
Observations do not temporarily explain something like inferences do
19.
Using any of your 5 senses to describe he world around you.
a)
prediction
b)
observation
c)
inference
d)
logical theory
20.
Which statement is an inference?
a)
The book is on the table.
b)
The sky is blue.
c)
The car is red.
d)
The grass is wet because it rained last night.
21.
The cat looks mad. He must be hangry.
a)
inference
b)
observation
22.
The part of an experiment that changes.
a)
observations
b)
variable
c)
hypothesis
d)
conclusion
23.
Which type of variable is what you change or manipulate.
a)
controlled variable
b)
dependent variable
c)
independent variable
24.
You are testing how the amount you water a plant affects its growth.
What would be the independent variable in this experiment.
a)
The type of pot you put the plants in.
b)
The amount of sunlight the plants get.
c)
The amount the plant grows.
d)
The amount you water each plant.
25.
Which of the following is an example of a quantitative observation?
a)
The music is loud.
b)
The temperature is 75 degrees Celsius.
c)
The apple is red and shiny.
d)
The room smells like fresh baked cookies.
26.
Which of the following is an example of a qualitative observation?
a)
There are 50 states in the USA.
b)
The cat weighs 28 kg.
c)
The clouds look grey and dark.
d)
The horse can run 15 mph.
27.
Observing by counting or measuring
a)
qualitative observations
b)
quantitative observations
c)
weighing
d)
observations
28.
Which type of energy is harnessed from the sun?
a)
chemical energy
b)
radiant energy
c)
mechanical energy
d)
electrical energy
29.
The diagram shows the curved path of a thrown ball.
At which point does the ball have the greatest amount of gravitational potential energy?
a)
point W
b)
point X
c)
point Y
d)
point Z
30.
Which is the type of energy used when burning gasoline?
a)
electrical energy
b)
chemical energy
c)
radiant energy
d)
mechanical energy
31.
Your body obtains energy from the food you eat. What is the form of energy in food?
a)
electrical energy
b)
chemical energy
c)
light energy
d)
sound energy
32.
What kind of energy is produced by a campfire?
a)
nuclear energy
b)
electrical energy
c)
mechanical energy
d)
thermal energy
33.
Which group of energies are both examples of Kinetic energy?
a)
mechanical, thermal
b)
elastic, gravitational
c)
electrical, chemical
d)
nuclear, thermal
34.
What type of energy is released during a lightning strike?
a)
radiant
b)
mechanical
c)
chemical
d)
electrical
35.
What energy is given off when a cell phone rings?
a)
Sound Energy
b)
Gravitational Energy
c)
Thermal Energy
d)
Nuclear Energy
36.
Gordon throws a baseball into the air. It rises, stops when it reaches its greatest height, and then falls back to the ground. At what point does kinetic energy convert to potential energy?
a)
when the baseball is falling
b)
when the baseball is rising
c)
while the baseball is on the ground
d)
while the baseball is stopped in the air
37.
A ball is sitting at the top of a ramp. As the ball rolls down the ramp, the potential energy of the ball decreases. What happens to the potential energy as the ball moves?
a)
It is lost as gravitational energy.
b)
It is converted to kinetic energy.
c)
It is destroyed as the ball moves.
d)
It is used to make the ball slow down.
38.
The motion of a fish swimming in a fish tank is an example of which type of energy?
a)
chemical energy
b)
kinetic energy
c)
potential energy
d)
gravitational energy
39.
A toy robot can walk and talk and runs on batteries. Which type of energy is stored in the batteries?
a)
nuclear energy
b)
chemical energy
c)
electrical energy
d)
mechanical energy
40.
Three rocks are rolling down a hill at the same speed. Rock 1 has a mass of 1 kg; rock 2 has a mass of 1.5 kg, and rock 3 has a mass of 3 kg. Which rock has the most kinetic energy?
a)
rock 1
b)
rock 2
c)
rock 3
d)
all three rocks have the same kinetic energy
41.
What machine changes electrical energy into light and sound energy?
a)
battery
b)
lightbulb
c)
alarm clock
d)
apple
42.
Energy in bending, twisting, stretching, and compressing objects.
a)
potential energy
b)
gravitational potential energy
c)
kinetic energy
d)
elastic energy
43.
In the picture, mechanical energy is being demonstrated.
Which two forms of energy are combined to describe mechanical energy?
a)
thermal and electromagnetic
b)
gamma rays and x-rays
c)
conduction and convection
d)
kinetic and potential
44.
Roller Coasters X and Y are identical in design. Roller Coaster "X" has 8 carts. Roller Coaster "Y" has 12 carts. Which roller coaster is likely to have more kinetic energy at the bottom of a hill?
a)
Roller Coaster "X"
b)
Roller Coaster "Y"
c)
They have the same amount
d)
There is not enough information to tell
45.
Lucas's experiment failed because he didn't have a power source or batteries. What form of energy was he trying to use?
a)
light energy
b)
thermal energy
c)
chemical energy
d)
electrical energy
46.
A student observes two identical springs. One spring is compressed, and the other is stretched.
What can be said about the potential energy in the springs when they are compressed or stretched?
a)
Both the compressed spring and the stretched spring store elastic potential energy
b)
The compressed spring stores elastic potential energy, but the stretched spring does not.
c)
The stretched spring stores elastic potential energy, but the compressed spring does not.
d)
Neither the compressed spring nor the stretched spring stores elastic potential energy.
47.
Object X is at the base of a mountain. Object Y is at the peak of the mountain. Which object possesses higher potential energy?
a)
Object X
b)
Object Y
c)
There is not enough information to tell.
d)
They have the same amount.
48.
Energy stored in the nucleus of an atom, released during nuclear reactions.
a)
sound energy
b)
nuclear energy
c)
chemical energy
d)
electrical energy
49.
A plant turns thermal energy from the sun into chemical energy during photosynthesis. This is an example of a(n)...
a)
Energy transformation
b)
Matter transformation
c)
Energy change
d)
Physical Change
50.
Michael claims that energy can be destroyed. Sarah argues that energy cannot be destroyed. Based on the law of conservation of energy, who is correct?
a)
There is not enough information to tell.
b)
Michael is correct
c)
Sarah is correct
d)
Neither are correct
51.
What type of energy is present in an object when it is stored and ready to be used later?
a)
potential energy
b)
mechanical energy
c)
kinetic energy
d)
unpredictable energy
52.
Energy can be classified into two main categories. What are these categories?
a)
Thermal and Electrical
b)
Mechanical and Chemical
c)
Potential and Kinetic
d)
Light and Sound
53.
What type of energy is singing?
a)
mechanical
b)
sound
c)
nuclear
d)
thermal
54.
Which form of energy is produced by the movement of particles causing vibrations?
a)
sound energy
b)
chemical energy
c)
light energy
d)
electrical energy
55.
Which process transforms chemical energy into thermal energy?
a)
A car engine heating up after a long drive.
b)
Digesting food to maintain body warmth.
c)
Burning coal to produce steam.
d)
All of the above.
56.
The process of energy changing from one form into another
a)
efficency
b)
law of conservation of energy
c)
energy transformation
d)
thermal energy
57.
The picture shows what type of transformation
a)
electrical to mechanical
b)
light to electric
c)
electrical to light
d)
light to light
58.
What form of energy is being used when a person pushes heavy boxes across the floor?
a)
electrical energy
b)
mechanical energy
c)
heat energy
d)
sound energy
59.
Gravitational potential energy depends on the ________ and ________ of the object.
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction
60.
What does the Law of Conservation of Energy state?
a)
Energy can be transformed , but not created or destroyed
b)
The total energy in the universe is constantly increasing
c)
Energy is always lost as heat in any process
d)
The energy of a system is always increasing
61.
What is the unit for energy?
a)
Joule (J)
b)
Newtons (N)
c)
Work (W)
d)
Force (F)
62.
How is "work" defined by scientists?
a)
The distance an object moves
b)
The amount of force applied to an object
c)
The energy an object possesses due to its motion
d)
The transfer of energy to an object by a force that causes the object to move in the direction of that force
63.
What energy transformation occurs from a light bulb?
a)
Electrical energy = kinetic energy + potential energy
b)
Electrical energy = electrical energy
c)
Electrical energy = chemical energy
d)
Electrical energy = light energy + thermal energy
64.
Energy of motion is which type of energy?
a)
potential energy
b)
kinetic energy
c)
sound energy
d)
gravitational energy
65.
When the bowstring is released, what energy transformation will occur?
a)
elastic potential energy into kinetic energy
b)
kinetic energy into elastic potential energy
c)
elastic potential energy into gravitational potential energy
d)
kinetic energy to gravitaitonal potential energy
66.
What is energy?
a)
The ability to do work or to cause changes in matter
b)
The capacity to perform physical tasks
c)
The movement of an object in a specific direction
d)
A type of force that causes movement
67.
The flow of electrons is what type of energy?
a)
chemical energy
b)
electrical energy
c)
thermal energy
d)
potential energy
68.
Which spring has more elastic potential energy?
a)
A
b)
B
c)
C
d)
They all have the same amount of potential energy
69.
If a bowling ball and a tennis ball sat on the top of a table, which one would have more gravitational potential energy?
a)
The bowling ball has more GPE
b)
The tennis ball has more GPE
c)
They have the same GPE
d)
Neither one
70.
If a bike and a car were both moving at a speed of 2 m/s, which one would have more kinetic energy?
a)
The bike has more KE
b)
The car has more KE
c)
They have the same KE
71.
Wind turbines and windmills convert what energy to another?
a)
Kinetic to electric
b)
Gravitational potential to electric
c)
Mechanical to potential
d)
Thermal to sound
72.
Muscles operate to push the pedals on a bicycle causing the wheels to turn. What type of energy being represented?
a)
mechanical
b)
physical
c)
thermal
d)
chemical
73.
Which is the best example of kinetic energy?
a)
A car sitting on top of a hill
b)
A skateboard on the sidewalk
c)
A wagon sitting at the bottom of a hill
d)
A powerwheel parked in the yard
74.
Which of the following examples describes kinetic energy transforming into potential energy?
a)
A car stopping at a red light and then going on green.
b)
Ms. Wong walking around the classroom.
c)
Richard running and then stopping at the finish line.
d)
Destiny sitting in a chair.
75.
More than one form of energy can be present at a time.
a)
true
b)
false
76.
Forms of energy are constantly changing from one form to another.
a)
true
b)
false
77.
The glow sticks produce light for a short amount of time. The light from the glow stick is a conversion from what to what?
a)
thermal to light
b)
gravitational to potential
c)
radiant to electrical
d)
chemical to light
78.
Which is an example of a chemical change?
a)
baking a cake
b)
breaking an egg
c)
crushing a can
d)
freezing water
79.
Which one of these is a chemical property?
a)
flammability
b)
melting point
c)
boiling point
d)
color
80.
The amount of space an object occupies is .....
a)
matter
b)
density
c)
volume
d)
mass
81.
Which of the following is a physical property of matter?
a)
luster
b)
reacts with air
c)
flammability
d)
reacts with acid
82.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
dissolving
d)
formation of a gas
83.
Physical properties are
a)
properties that can be observed without changing the identity of the substance
b)
properties that describe how a substance changes into a completely different substance
84.
A physical property can be observed with your
a)
tastes
b)
ears
c)
eyes
d)
all of the above
85.
A measure of how much mass is contained in a given unit of volume.....
a)
density
b)
mass
c)
matter
d)
volume
86.
Water is boiled and turns to vapor. The vapor is cooled and changes back into water. Which best describes what has occurred?
a)
a physical change, because a new substance was formed
b)
a physical change, because the matter changed its state
c)
a chemical change, because the matter changed its state
d)
a chemical change, because a new substance was formed
87.
You can measure ___________ with grams.
a)
volume
b)
melting point
c)
conductivity
d)
mass
88.
What is the volume of this prism?
a)
6 cm3
b)
18 cm3
c)
9 cm3
89.
Rust on an iron bar is an example of chemical change.
a)
True
b)
False
90.
A piece of aluminum foil has a density of 2.70 g/cm3 and a mass of 24.3 grams. What is its volume?
a)
8.5 cm3
b)
12 cm3
c)
9 cm3
d)
10 cm3
91.
Air has mass.
a)
True
b)
False
92.
What is the formula for density?
a)
density = mass X volume
b)
density = mass - volume
c)
density = mass + volume
d)
density = mass / volume
93.
Which of the following is a sign that a chemical reaction has occurred?
a)
melting
b)
dissolving
c)
change in shape
d)
formation of a gas
94.
Density is the _________that helps identify an object.
a)
physical property
b)
chemical property
c)
matter
d)
mass
95.
A description of objects that can be measured and observed.
a)
mustangs
b)
melting point
c)
physical properties
d)
gas
96.
Which has the greatest volume?
a)
ping pong ball
b)
beach ball
c)
tennis ball
d)
golf ball
97.
What is the mass of an object with a density of 5 g/cm3 and a volume of 3 cm3?
a)
15 g
b)
2 g
c)
8 g
d)
1.5 g
98.
A marshmallow is toasted over a campfire.
a)
chemical change
b)
physical change
99.
Example for physical property
a)
combustion
b)
melting point
c)
reactivity
d)
flammability
100.
Anything that has mass and takes up space.
a)
volume
b)
mass
c)
density
d)
matter
101.
A solid is crushed to a powder.
a)
chemical change
b)
physical change
102.
A change where one or more new substances are created.
a)
chemical change
b)
physical change
103.
What is the definition of "weight?'
a)
the measure of the force of gravity on an object
b)
the size of an object
c)
the amount of matter in an object
d)
the time it takes to get on a ride
104.
Chocolate syrup dissolved in milk.
a)
chemical change
b)
physical change
105.
Jack has a rock. The rock has a mass of 14 g and a volume of 2 cm3. What is the density of the rock?
a)
17 g/cm3
b)
28 g/cm3
c)
7 g/cm3
d)
7 mL
106.
Which has the greatest density?
a)
beach ball
b)
ping pong ball
c)
tennis ball
d)
golf ball
107.
What units are used for volume?
a)
degrees
b)
pounds
c)
grams
d)
milliliters or cm3
108.
Why would you weigh less on the moon compared to Earth?
a)
more gravitational pull
b)
less air
c)
less gravitational pull
d)
less sunlight
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