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WorksheetsPhysical Science
Total questions: 50
Worksheet time: 7hrs 50mins
Name
Class
Date
1.
When you are cold, rubbing your hands together very quickly can warm them up.Why does this happen?
a)
Thermal energy is converted to electricity.
b)
Mechanical energy is converted to thermal energy.
c)
Mechanical energy is converted to sound.
d)
Electrical energy is converted to mechanical.
2.
Andrew uses a fan that is plugged into the wall to cool off his bedroom. The fan starts to move and the motor makes a whirring noise. Choose the response that lists the 3 energy forms taking place.
a)
electrical, mechanical, sound
b)
light, mechanical, thermal
c)
thermal, electrical, sound
d)
electrical, mechanical, thermal
3.
When using a solar-powered calculator, what source of energy is being used to power the calculator?
a)
Electrical energy
b)
Light energy
c)
Mechanical energy
d)
Sound energy
4.
Which two objects use electrical energy to produce sound?
a)
A camera and a pencil sharpener
b)
A microphone and a stove
c)
A lamp and a television
d)
A radio and an MP3 player
5.
Which observations listed above involved the use of mechanical and sound energy?
a)
Observations 1, 2, and 6
b)
Observations 3, 4, and 6
c)
Observations 1, 3, and 5
d)
Observations 1, 4, and 6
6.
The teacher opened a window in the classroom to cool down the room. Which of these activities uses the same type of energy that the teacher used?
a)
Playing the drums using mechanical energy
b)
Burning wood using thermal energy
c)
Lighting light bulbs using electrical energy
d)
Talking to someone using sound energy
7.
Kay constructed a circuit using a battery, copper wire, a switch, and one of these light bulbs. Which light bulb will successfully complete the circuit?
a)
A, because the circuit is open
b)
A, because the circuit is closed
c)
B, because the circuit is open
d)
B, because the circuit is closed
8.
Circuit A is constructed using a 6-volt battery, copper wires, and a light bulb. Circuit B is constructed using a 9-volt battery, string, and a light bulb. Which of the circuits produces light?
a)
Circuit B because the battery produced more power than needed.
b)
Circuit A because the wires were lacking proper insulation in circuit B.
c)
Circuit A because copper wires are good conductors of electricity.
d)
Circuit B because it was in a complete circuit.
9.
Some students constructed a battery–powered circuit like the one in the above picture.Which of the following BEST explains why the light bulb would not light up?
a)
The circuit requires a different type of battery.
b)
The circuit needs more power than is available.
c)
The switch in the circuit is missing.
d)
The wires are connected incorrectly to the battery
10.
Observe the circuit above. Which procedure can a student use to turn on the blue and green lights only?
a)
The student cannot follow any procedure to turn on the green and red lights only.
b)
The student can close switch A and switch C, but leave switch B open.
c)
The student can close switch A and switch B, but leave switch C open.
d)
The student can close switch B and switch C, but leave switch A open.
11.
What kind of telescope is shown in the diagram?
a)
reflecting telescope
b)
refracting telescope
c)
radio telescope
d)
Hubble telescope
12.
When walking through a parking lot, Sam notices that light rays pass though some objects,are absorbed by some objects, and bounce off some objects. When light rays bounce off an object, they are —
a)
refracted
b)
retracted
c)
reflected
d)
reabsorbed
13.
Which property of light makes it possible to produce hand shadows?
a)
Light can be refracted.
b)
Light is a form of energy.
c)
Light travels in straight lines.
d)
Light can be separated into different colors.
14.
A student wants to know how the design of a sail will affect the amount of force needed to blow an aluminum boat across a pool of water. How can the student record the amount of force that is used in this investigation?
a)
Measure the time it takes for the boat to cross the pool.
b)
Calculate the area of the sail using the length and width.
c)
Count the puffs of air used to blow the boat across the pool.
d)
Pull each boat slowly across the water using a spring scale.
15.
Two students designed an experiment to test the effects of force on an object. They stood on opposite sides of a large box and then they applied a push to the box. The box was moving to the right. What can be said about the effect of the force being applied by the student on the right?
a)
The pushing force was greater on the right so the box moved to the right.
b)
The force of friction was greater on the right so the box moved to the right.
c)
The pushing force was less on the right so the box moved to the right.
d)
The force of friction was less on the right so the box moved to the right.
16.
A boy took his dog for a walk. The dog saw a rabbit and decided to chase it. The dog dragged the boy until he got tired and stopped. What can be said about the dogs force in comparison to the boys force while the dog was chasing the rabbit?
a)
The dog applied the greatest force in pulling.
b)
The dog applied the greatest force in pushing.
c)
The dog applied the least force in pushing.
d)
The dog applied the least force in pulling.
17.
What is another word for an educated guess?
a)
Conclusion
b)
Hypothesis
c)
Scientific Investigation
d)
Prediction
18.
What is a controlled variable?
a)
A variable that is changed during the experiment.
b)
A variable that is not changed during the experiment
19.
Mrs. King has a mixture of pepper, sugar, and water. If she wanted to separate them, what should she use?
a)
tweezers and coffee filter
b)
strainer and magnet
c)
her hands
d)
a hot plate
20.
What is the state of matter that has a definite volume but no definite shape
a)
solid
b)
liquid
c)
plasma
d)
gas
21.
What are physical properties of matter?
a)
A mixture that is evenly mixed
b)
A combination of two or more substances
c)
solids, liquids, and gases
d)
characteristics of matter that can be observed or measured
22.
Sam wants to find out how much space his rock takes up. Which tool should he use?
a)
meter stick
b)
graduated cylinder
c)
triple beam balance
d)
spring scale
23.
Which type of objects would float?
a)
Those heavier than water
b)
Those with the same density as water
c)
Those less dense than water
d)
Those that are only made of gas
24.
Items that are all magnetic are:
a)
plastic, steel, and iron
b)
rubber band, nail, and wood
c)
copper penny, dime, and paper clip
d)
nail, steel, and iron
25.
Nancy has created an electrical circuit and wonders which object she should use as a conductor:
a)
penny
b)
styrofoam
c)
plastic
d)
wood
26.
Which type of material would be the best insulator when trying to keep a drink cool?
a)
styrofoam
b)
foil
c)
plastic wrap
d)
paper
27.
Which state of matter has no definite shape and no definite volume?
a)
plasma
b)
gas
c)
solid
d)
liquid
28.
Students have two blocks the same size. They drop each block into a beaker of water. Why does Block 1 float and Block 2 sink?
a)
Block 1 is made of a different material than Block 2
b)
Block 1 is smaller than Block 2
c)
Block 2 absorbs more water than Block 1
d)
Block 2 has less mass than Block 1
29.
“Ball C" is rolling across the surface, but it eventually comes to a stop. Which force is most likely responsible for this?
a)
gravity
b)
friction
c)
electricity
d)
magnetism
30.
If the forces are the same in Scenario A and Scenario C, which ball would move the fastest?
a)
both balls would move at the same speed
b)
there is no way to determine which ball would move the fastest
c)
the ball in Scenario C
d)
the ball in Scenario A
31.
Ball B" is moving towards the rectangular block. Which feature of the block can explain why this is happening?
a)
the block is blowing air towards "Ball B"
b)
the block is a magnet (and "Ball B" is made of a magnetic material)
c)
the block is located on the highest part of the surface
d)
the block is heavier than "Ball B"
32.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
33.
A control in an experiment is -
a)
the substance, object or group in an experiment that is not changed
b)
an experiment in which all variables are kept the same except one
c)
a push or pull
d)
a condition in an experiment that is changed
34.
A variable in a science experiment is -
a)
the substance, object or group in an experiment that is not changed
b)
an experiment in which all variables are kept the same except one
c)
a push or pull
d)
a condition in an experiment that is changed in order to determine the effect
35.
Which experiment listed below will best determine how friction affects the speed of a rolling object?
a)
Roll 3 objects of various sizes across the floor.
b)
Roll 3 objects of equal size from various heights across the floor.
c)
Roll 3 objects of equal size across 3 different types of surfaces.
d)
Roll 3 objects of equal size from equal heights across the floor.
36.
When conducting an experiment, in order to get reliable results, it is important to:
a)
Disregard results that do not match your hypothesis
b)
Test many different variables at the same time
c)
Test all forces at the same time
d)
Repeat the investigation several times
37.
When designing an experiment, why is it important to test only one variable?
a)
Testing one variable explains what caused the change once data has been gathered.
b)
Testing one variable collects inaccurate data and repeats the investigation more than necessary.
c)
Testing one variable decreases the reliability of the investigation.
d)
It is not necessary to test only one variable.
38.
What is a switch's function in a circuit?
a)
to make the current hotter or colder
b)
turn on and off the flow of current
c)
the pathway that current flows
d)
to add more power to the circuit
39.
Solar energy receives its energy from the ______
a)
sun
b)
moon
c)
light
d)
heat
40.
Light hitting a prism is an example of
a)
Absorption
b)
Reflection
c)
Yellow Light
d)
Refraction
41.
What is happening to the light in this picture?
a)
bouncing (reflecting)
b)
bending (reflecting)
c)
bouncing (refracting)
d)
bending (refracting)
42.
What is happening to the light in this picture?
a)
bouncing (reflecting)
b)
bouncing (refracting)
c)
bending (reflecting)
d)
bending (refracting)
43.
Why is this not a complete circuit?
a)
the switch is open
b)
double positive charge
c)
negative charge is not connected
d)
nothing
44.
How many light bulbs are lit?
a)
0
b)
1
c)
2
d)
3
45.
How many light bulbs are lit?
a)
0
b)
1
c)
2
d)
3
46.
How many light bulbs are lit?
a)
0
b)
1
c)
2
d)
3
47.
How many light bulbs are lit?
a)
0
b)
1
c)
2
d)
3
48.
How can you make this into a complete circuit?
a)
remove screw
b)
add a switch
c)
connect negative to positive charge
d)
take out short red wire
49.
What happens when light hits an object that it cannot pass through?
a)
refracted or absorbed
b)
reflected or absorbed
c)
scattered or curved
d)
reflected or refracted
50.
Water flows through turbines in dams like the one shown below. The flowing water make the turbines spin.
a)
light energy
b)
thermal energy
c)
sound energy
d)
mechanical energy
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