Қаріп өлшемі
Жұмыс парақтарыScience 2nd Trimester
Total сұрақ: 30
Worksheet time: 3600secs
Which of these natural resources is renewable?
oil
coil
wind
uranium
Which of these natural resources are being used much faster than they are naturally replaced?
coal and wind
solar energy and uranium
oil and coal
Wind and water
An electric company uses different types of energy to produce electricity. Lydia's family wants to get their power from an energy source that would likely have the least harmful effect on the environment. Which plan should they chose?
Plan B, which uses coal
Plan C, which uses natural gas
Plan D, which uses solar energy
Plan A, which uses oil
What is one disadvantage of solar energy?
Panels require a lot of space.
It causes much air pollution.
It is nonrenewable.
Sunlight can be used up entirely.
Juan Carlos and his family want to use renewable energy resources to provide their electricity. Which should they choose?
solar energy and wind energy
uranium and wind
oil and natural gas
hydroelectric energy and nuclear energy
What is one advantage of using coal to produce electricity?
It burns cleanly and does not pollute the air.
It is relatively cheap to mine.
It doesn't harm ecosystems.
It is replaced as fast as it is used.
What is a disadvantage of using nuclear energy to produce electricity?
It requires large amounts of land.
It is renewable.
It can destroy river habitats.
It produces harmful wastes.
What is a disadvantage of using hydroelectric energy to produce electricity?
It may disrupt fish populations.
It produces harmful waste.
It pollutes water.
It uses a nonrenewable resource.
People are using oil and gas faster than nature can replace them.
true
false
Renewable energy resources will eventually run out.
True
False
Renewable energy sources cannot harm the environment.
True
False
Which of these describes all waves?
energy that moves in a regular pattern
energy that moves an object backward
energy that moves an object forward
energy that moves from side to side
What happens when waves move across the surface of deep water?
The water moves up and down.
The water moves forward.
The water moves backward.
The water does not move.
A wave transfers water from one place to another.
False
True
As a wave moves through deep water, the water does not move in the direction of the wave.
True
False
As a wave in the ocean gets close to the shore, it gets shorter.
True
False
What is amplitude?
the distance from the crest or trough to the middle point of the wave
the distance from one crest to the next crest
the distance from the middle point of a wave to the wavelength
the distance from one trough to the next trough
It shows the waves that formed when a small rock was dropped into the water. The waves are not very tall nor far apart. Which of the following correctly describes the properties of these waves?
low amplitudes and long wavelengths
low amplitudes and short wavelengths
high amplitudes and short wavelengths
high amplitudes and long wavelengths
Which of these waves would transfer the most energy?
one with a low crest
one with a low amplitude
one with a high amplitude
one with a high trough
What is wavelength?
the distance from a crest to a trough
the distance from one crest to the next crest or one trough to the next trough
the distance from the middle point of a wave to a trough
the distance from the middle point of a wave to a crest
Which part of this drawing is a wave trough?
D
B
C
A
What does it mean if waves have short wavelengths?
The distance from one trough to the next is small.
The distance from one crest to the next trough is large.
The distance from one trough to the next is large.
The distance from the middle point of a wave to a trough is small.
How does energy change when a player kicks a soccer ball to score a goal?
The foot gains most of the energy of motion.
The ball gains most of the energy of motion.
Neither the ball nor the foot gains energy.
The ball loses energy.
What happens when a tennis player hits the ball over the net with her racquet?
The ball's energy and motion change.
The net gains some of the ball's energy.
All of the racquet's energy is changed to sound.
All of the ball's energy is changed to sound.
What happens when two moving objects of different sizes collide and move apart?
Both objects lose some of their energy.
The larger object loses all of its energy.
The smaller object loses all of its energy.
Both objects lose all of their energy.
A batter hits a fastball. The pitcher catches the ball and throws it to the catcher. Which of these describes what happened to the ball as it moved?
It changed speed and motion as it moved.
It lost energy of motion when it was hit.
It gained energy when the pitcher caught it.
All of its energy of motion was transformed into sound.
Emily dropped a marble on a wood floor. It made a loud noise. Why did this happen?
The mass of the marble increased when it hit the wood floor.
The marble's mass was transformed to sound when it hit the wood floor.
Some of the marble's energy of motion was transformed to sound energy when the marble hit the floor.
The mass of the marble decreased when it hit the wood floor.
Which of these is an example of electrical energy being transformed into sound energy?
a radio playing
typing on a keyboard
turning off a lamp
talking to a friend
Zoe picks up a book she left by a sunny window. She notices the book is warm to the touch. What can Zoe conclude from her observation?
Light can transfer energy to objects and heat them
Heat travels faster than light.
Light travels faster than sound waves.
Heated air produces light.
Energy from the sun travels through space as heat.
True
False
