Download Study Island Copyright © 2013 Edmentum

Study Island
Copyright © 2013 Edmentum - All rights reserved.
Generation Date: 11/18/2013
Generated By: Bill Wieners
1. Into what kinds of energy does a toaster convert electrical energy?
A. solar and chemical
B. mechanical and light
C. light and heat
D. heat and chemical
2. Kinetic energy is the energy of motion. How could you determine how much kinetic energy an
object has?
A. by finding its height and width
B. by finding its position and form
C. by finding its speed and direction
D. by finding its mass and speed
3. Niagara Falls is a set of very large waterfalls located on the border between New York and
Ontario, Canada. Over 200,000 cubic feet of fast-moving water falls approximately 180 feet
every second. Water at the top of the Falls possesses
A. kinetic energy and gravitational potential energy.
B. only gravitational potential energy.
C. only kinetic energy.
D. neither gravitational potential energy nor kinetic energy.
4. Gravitational potential energy is dependent upon
A. speed and height.
B. time and weight.
C. weight and height.
D. acceleration and kinetic energy.
5. A car uses stored chemical energy in gasoline to move. The engine changes chemical energy
into heat and ____ energy to power the car.
A. mechanical
B. sound
C. light
D. wind
6.
Between steps 4 and 5, the mechanical energy of the turbine is converted to
A. transitional energy
B. mechanical energy
C. electrical energy
D. heat energy
7. Which statement is true about energy changes?
A. Energy can be destroyed but not created.
B. Energy can be created but not destroyed.
C. Energy can be created and destroyed.
D. Energy cannot be created or destroyed.
8. A car slams on its brakes, producing friction between the tires and the road. Into which type of
energy is the mechanical energy of the car converted?
A. chemical
B. heat
C. gravitational
D. light
9.
Amy is at basketball practice. She is about to shoot a free throw. When she releases the ball
the ball will have kinetic energy but will not have potential energy.
A.
B.
C.
D.
the ball will have neither kinetic energy nor potential energy.
the ball will have kinetic energy and potential energy.
the ball will not have kinetic energy but will have potential energy.
10. A small car is traveling at a speed of 60 mph on the highway. In the next lane, a large
passenger bus is traveling at the same speed.
Which of the following is true?
A. The bus has more kinetic energy than the car.
B. The car has more kinetic energy than bus.
C. The car and bus have the same amount of kinetic energy.
D. The car and the bus have potential energy, not kinetic energy.
11. Niagara Falls is a set of very large waterfalls located on the border between New York and
Ontario, Canada. Over 200,000 cubic feet of fast-moving water falls approximately 180 feet
every second. Water at the top of the Falls possesses
A. kinetic energy and gravitational potential energy.
B. only kinetic energy.
C. neither gravitational potential energy nor kinetic energy.
D. only gravitational potential energy.
12. During the wettest period since they started keeping records in 1877, a 25 foot boulder fell in
a mudslide and blocked both lanes of Topanga Canyon Road in Malibu, California in January
2005. What was the initial transfer of energy that accelerated the boulder down the side of the
mountain?
A. kinetic energy being converted into potential energy
B. mechanical energy being converted into potential energy
C. potential energy being converted into kinetic energy
D. potential energy being converted into mechanical energy
13. The diagram below shows the transformation from electrical energy to light and heat energy
through an incandescent light bulb.
If 100 J of electrical energy enter the bulb and 5 J of light energy leave the bulb, how many
joules of heat energy leave the bulb?
A. 105 J
B. 100 J
C. 5 J
D. 95 J
14.
It takes 86 joules of energy to raise a box 2 meters using the pulley setup shown above.
Without the pulley, the box can be raised 2 meters using only 82 joules of energy. What could
explain this 4-joule difference?
A. When raising the box using the pulley, 4 joules of mechanical energy are converted into
heat energy due to friction.
When raising the box using the pulley, 4 joules of mechanical energy are broken down into
B. protons, neutrons, and electrons.
When raising the box using the pulley, 4 joules of mechanical energy are transformed into
C. water.
D.
When raising the box using the pulley, 4 joules of mechanical energy are destroyed.
15.
A circuit is shown in the picture above. Energy is transferred first from the battery to the circuit
wire and then from the circuit wire to the light. What energy transformations occur between
these two transfers?
Energy is transformed first from chemical energy to electrical energy and then from
A. electrical energy to light and heat energy.
Energy is transformed first from chemical energy to mechanical energy and then from
B. mechanical energy to light and heat energy.
Energy is transformed first from mechanical energy to chemical energy and then from
C. chemical energy to light and heat energy.
Energy is transformed first from chemical energy to light and heat energy and then from
D. light and heat energy to electrical energy.
16. There is a skier at the top of a ski slope. The skier has potential energy. What gives the skier
his potential energy?
A. his speed
B. friction
C. gravity
D. his efficiency
17. Lucas plugs a lamp into the wall. The light bulb in the lamp turns on. What kind of energy
transformation is this?
A.
B.
C.
D.
Electrical energy is transformed into mechanical and heat energy.
Light energy is transformed into electrical and mechanical energy.
Electrical energy is transformed into light and heat energy.
Light energy is transformed into mechanical and heat energy.
18. When you are out in the sunshine you feel warm because the _____ energy excites the
molecules of your skin and creates heat there.
A. geothermal
B. solar
C. mechanical
D. chemical
19. Scientists have designed solar cells to trap solar energy and convert it to _____ energy.
A. electrical
B. hydrelectric
C. chemical
D. wind
20. Kinetic energy is the energy of motion. How could you determine how much kinetic energy
an object has?
A. by finding its position and form
B. by finding its height and width
C. by finding its speed and direction
D. by finding its mass and speed
21. Maya is playing the guitar. She strums the strings and the guitar produces noise. Maya is
transforming _______ energy into _______ energy.
A. mechanical; sound
B. mechanical; light
C. electrical; mechanical
D. electrical; sound
22. _______ energy is defined as stored energy.
A. Contained
B. Kinetic
C. Potential
D. Dynamic
23. Amy performed an experiment in lab. She improperly mixed the chemicals, and an explosion
of light, sound, and heat occurred. When Amy mixed the chemicals, energy was _______.
A. transformed
B. stabilized
C. destroyed
D. created
24.
A flashlight produces light using energy from the batteries. In which order does the energy
change form?
A. from electric to light to chemical energy
B. from electric to chemical to light energy
C. from chemical to electric to light energy
D. from light to electric to chemical energy
25. A campfire is a good source of heat and light on a cool night. The energy that is released
when firewood is burned comes from
A. the energy used to strike the match.
B. the energy used to carry the wood.
C. the chemical bonds in the wood.
D. the kinetic energy of the moving flames.
26. A golf ball is dropped off of the side of a building. Ignore the effects of air resistance. As the
ball continues to fall freely, the kinetic energy of the ball
A. decreases.
B. increases.
C. equals zero.
D. remains the same.
27. Tyler stretches a rubber band so that it is tight. The stretched rubber band has
A. potential energy.
B. kinetic energy.
C. magnetic energy.
D. electrical energy.
28. When an object is lifted 6 feet off the ground, it gains a certain amount of potential energy. If
the same object is lifted 12 feet off the ground, its potential energy is _____.
A. three times as much
B. four times as much
C. the same
D. twice as much
29. Study the diagram of the roller coaster below.
Position A is the starting point for the roller coaster. At which position will the first roller coaster
car have the most potential energy?
A. position A
B. position D
C. position C
D. position B
30. A stone held above the ground has potential energy. When the stone is dropped, potential
energy is converted to _________ energy.
A. kinetic
B. thermal
C. electrical
D. chemical