1st Grade Science : Physical Science

Study concepts, example questions & explanations for 1st Grade Science

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Example Questions

Example Question #1 : Investigate How Sound Makes Materials Vibrate

How does this drum make a sound?

Gong, Grasping Week, Antique, Music

Possible Answers:

Magic

Vibrations

Waving

Correct answer:

Vibrations

Explanation:

The player would bang the drumstick on the surface of the drum, which would cause a vibration of the air in the drum against the outer material. This would travel to our ears as a sound wave so we could hear the music being played.

Example Question #11 : Sound And Vibration

The rainbow-colored lines in the back are vibrations represented as _________________. They travel to our ears after a vibrating material makes a sound.

Podcast, Microphone, Wave, Audio, Sound

Possible Answers:

sound waves

vision waves

taste waves

Correct answer:

sound waves

Explanation:

The colored lines in the background represent sound waves caused by vibrations. When an object vibrates a sound wave is created and this travels to our ear and is processed as a noise we can hear.

Example Question #11 : Sound And Vibration

How is this picture similar to vibrations making a sound?

Water, Drop, Liquid, Splash, Wet, Clean, Clear, Ripple

Possible Answers:

The picture and sound both include waves.

The picture is not similar to sound at all.

The picture shows a drop of water which can be very loud.

Correct answer:

The picture and sound both include waves.

Explanation:

This picture demonstrates a drop of water rippling outwards in waves. A similar process happens with sound. Vibration causes a sound wave to be formed, and that sound wave moves outwards towards our ears so it can be processed into sound.

Example Question #11 : Sound And Vibration

Which investigation would work best to see how vibrating materials make sounds?

Possible Answers:

Hold a ruler in front of you, wave it around, and make observations

List to a popular song on the radio using your ears

Hit a tuning fork on a desk and make observations with your five senses

Correct answer:

Hit a tuning fork on a desk and make observations with your five senses

Explanation:

The best set-up of an investigation to see how vibrating materials make sounds would be to use a tuning fork. Once the metal tuning fork is hit on the best students can visually see the fork vibrating and can move their ears closer to listen. Students will be able to see and hear how the vibrations work.

Example Question #81 : Physical Science

Pat's class is given an empty metal can with plastic wrap stretched across the top secured with a rubber band. His teacher sprinkles salt on the top of the plastic wrap. He is given a tuning fork and told to strike it on the desk and touch it to the side of the can. The rice starts to jump and he hears a sound. Why is this happening?

Possible Answers:

Vibrating materials (like the fork and can) make sounds and cause other vibrations.

The tuning fork is magic so it allows the rice to move and make sounds.

There is no relationship between the vibrations and sound.

Correct answer:

Vibrating materials (like the fork and can) make sounds and cause other vibrations.

Explanation:

The salt moved because of the vibrations of the tuning fork. When struck on the desk it begins vibrating which makes a quiet sound. When the tuning fork is placed against the can it gets louder because the can is also vibrating. This causes the rice to start "jumping" because it is also vibrating. Pat will hear the tuning fork, metal can, and the sound of the rice hitting the plastic wrap because of the vibrations.

Example Question #2 : Investigate How Vibrating Material Makes Sound

What does it mean if something vibrates?

Possible Answers:

It is a type of dance move

It moves quickly back-and-forth

It moves slowly one time

Correct answer:

It moves quickly back-and-forth

Explanation:

Vibrating means small, quick back-and-forth movements. When you pluck a rubber band, it vibrates, when we talk our vocal cords vibrate, everything vibrates when it makes sounds.

Example Question #3 : Investigate How Vibrating Material Makes Sound

A vibrating object can produce sound.

Possible Answers:

True

False

Correct answer:

True

Explanation:

This is a true statement. Vibrating materials do create sounds. If you think if the strings of a guitar, when strummed the strings vibrate and create the sounds. Sound comes from vibrations.

Example Question #4 : Investigate How Vibrating Material Makes Sound

What happens when materials vibrate?

Possible Answers:

Sound waves are created and move through the air.

Nothing happens when materials vibrate.

Ocean waves are created and move through the air.

Correct answer:

Sound waves are created and move through the air.

Explanation:

When a material vibrates sound waves are produced and travel through the air. Without vibrations, there would be no sound.

Example Question #5 : Investigate How Vibrating Material Makes Sound

Ms. Dube's class is experimenting with science today. At the Tuning Fork Station, students hit the tuning forks on the side of a cup. The vibration causes _________.

Possible Answers:

an earthquake

sound

the cup to fall

Correct answer:

sound

Explanation:

The vibration of the tuning fork causes sounds to be heard. When an object or material vibrates it creates sound waves. Those waves travel through the air and our ears receive and process the noises.

Example Question #6 : Investigate How Vibrating Material Makes Sound

How does hitting a drum produce sound?

Possible Answers:

The drum does not produce sound.

The drum has speakers and a radio attached.

The drum and air vibrate.

Correct answer:

The drum and air vibrate.

Explanation:

A drum produces sound when it is struck with a hand or object because the skin or outer covering vibrates. The air vibrates and sound waves move through the air producing the banging noises we hear with drums.

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