Sound Energy

Diemetre learns in science class that sound is a type of energy. Which of the following is true about sound energy?

• Sound energy only comes from electricity.
• Pitch describes the loudness of a sound.
• Sound energy comes from vibrating materials.
• Animals cannot hear sounds.

Helena conducted the experiment shown below. When she hit the drum with the drumstick, the paper clip flew into the air. Which of these statements best describes what Helena demonstrated with her experiment?

• Sound energy can cause movement.
• Sound energy can change into electric energy.
• Paper clips create sound energy.
• Drums lose energy when they are hit.

Elise watches a movie on TV. Which types of energy allow Elise to watch the movie?

• sound, light, and heat
• light, motion, and sound
• heat, sound, and electric
• electric, light,and sound

• move the pegs farther apart
• move the pegs closer together
• pluck the rubber band harder
• pluck the rubber band with a different finger

The students in Mrs.Kormanicki's class are using rubber bands and shoe boxes to make sound instruments. They have rubber bands of different thickness. If Rubber Band A is thicker than Rubber Band B, what can the students conclude about the pitch of Rubber Band B?

• It is lower.
• It is higher.
• It is louder.
• It is the same.

The vocal cords of a frog vibrate very slowly. Based on how the vocal cords of the frog vibrate, which of these is true about the sound the frog makes?

• It is high speed.
• It is high-pitched.
• It is very loud.
• It is low-pitched.

• Belinda
• Claude
• Jackie
• Vincent

Debra wrote down some notes about ways that students in her science class investigate scientific questions. Which of Debra’s notes is NOT one way that scientists investigate scientific questions?

• Make a prediction
• Plan and conduct an Experiment
• Gather and analyze data
• Change results to match the prediction

Matthew and Nicholas are studying sound and pitch in science class. They set up four glasses of water. Matthew and Nicholas want to know how the different water levels will affect the pitch of the sound. They strike each glass with a spoon to produce sound.On what evidence will the students base their conclusion?

• predictions about sound that the students made before the investigation
• how hard the students struck the glass
• questions that the students had during the investigation
• how high or low the sound was when the students struck the glass

Scientists use evidence they gather to answer scientific questions. Which of the following is the best way for scientists to present evidence from an experiment?

• make a list of materials
• write their procedures
• create graphs and data tables
• share their predictions