A kazoo is a toy that makes a sound when a person hums into it. Sound comes out of the kazoo because it...
A kazoo is a toy that makes a sound when a person hums into it. Sound comes out of the kazoo because it...
A student plays the drums in a band. When the drumstick and the drum are hit together, a loud sound is made. The force of the drumstick hitting the drum produces sound because...
Which of the following forms of energy involves rays bouncing off of objects?
The sun is a source of which types of energy?
Which object uses thermal energy to do its job?
In Iceland, residents and tourists can visit the Blue Lagoon, an outdoor spa with steamy waters. These waters are warm due to...
Band practice lasted two hours. Some people got headaches due to the loud noise. What caused the loud noise?
Matthew and Abigail are investigating the sound made by rubber bands. They listened to each sound, then they carefully wrote what they heard. Which of the following gives the best reason for writing what they heard?
You are exploring how to make sound louder by tapping a pencil against a desk. To make a louder sound with the pencil, you could...
Why can you see your reflection in a highly polished (shiny) table?
Which action would help you feel warmer when standing outside on a cold day?
A kazoo is a toy that makes a sound when a person hums into it. Sound comes out of the kazoo because it...
Which form of energy does the Sun provide?
Pitch is how high or low a sound is. It is related to the speed at which something beats or vibrates. The higher the beats per second the higher the pitch. The table below shows the rate at which different insects beat their wings. Use the table below to answer the question.
Which insect produces the sound that has the highest pitch?
Pitch is how high or low a sound is. It is related to the speed at which something beats or vibrates. The higher the beats per second the higher the pitch. The table below shows the rate at which different insects beat their wings. Use the table below to answer the question.
Which insect produces the sound that has the lowest pitch?
Which object produces light energy and thermal energy but NOT sound energy?
What must happen for an object to produce a sound?
John shines a light on a piece of aluminum foil. Then light appears on the ceiling. Why does this happen?
Energy you can see is called...
The ability to make something move or change is called energy.
A moving bicycle is an example of....