Share HR4 - SCIENCE - 03.05+03.08
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How is sound produced?
by staying still
from light energy
by plants growing
from vibrations
What is a vibration?
the repetitive movement of an object back and forth
a type of electrical energy
energy that stays in one place
a form of light
When a guitar string is plucked, how does it move to create sound?
it only moves upward
it moves back and forth in small and quick movements
it moves in large circles
it stops moving completely
How does sound energy travel from a source to our ears?
it does not travel
in the form of waves
through electrical wires
by heat energy
Why can we hear the sound an object makes?
the object stays far away
the object stops vibrating
vibrations give off energy that travels to our ears
light energy carries the sound
Which of the following explains why sound is heard when a bell's ball strikes the bowl?
after the ball strikes the bowl the bowl vibrates and a sound is heard
the light energy that is absorbed by the bowl is transformed into a sound
heat energy from the air is transformed into sound
friction changes its motion leading to a sound
When grilling meat or cooking a pancake, what change does heat energy cause?
it makes the object move like a scooter
it changes the object from raw to cooked
it changes the object from cooked to raw
it changes the object into light energy
How do plants use light energy?
to move back and forth quickly
to create food so they can grow
to produce electrical energy
to produce sound waves
What change is caused by the energy of motion on a scooter?
it changes the scooter from staying still to moving
it makes the scooter glow like a light bulb
it makes the scooter stay still
it cooks the scooter
Which type of energy can be used to train animals, such as using a whistle?
heat energy
electrical energy
sound energy
light energy
Which of the following is an example of using energy of motion to change an object?
cooking a hotdog on a fire
using an oil lamp to see in the dark
snapping a branch in half
warming the sand on the beach
Which of the following best describes how electrical energy can change an object?
it can transform into heat energy that allows us to heat our food
it creates vibrations that tell us a phone is ringing
it makes the water in a lake increase in temperature
it allows us to see the words on a page in a dark room
What does energy have the ability to do?
it only creates shadows
it has the ability to create change
it makes things stay still
it makes objects disappear
How does using a larger amount of energy affect an object?
it only changes the object's color
it makes the object stop moving
it creates a larger change or more motion
it creates no change at all
