Science Final revesion 2nd Term 2023-2024 gr3

3. ............... is the number of sound waves that are made in a certain amount of time. a. Frequency b. Heat. c. Battery

• Frequency

• Heat

• Battery

The energy of moving particles in matter is called .................

• Heat energy

• Potential energy

• Thermal energy

......................... means to move quickly back and forth.

• Vibrates

• Sound energy

• Volume

The movement of electric charges from one place to another is ..................

• light energy

• heat energy

• Electric current

.................... is how high or low a sound is.

• Energy

• Pitch

• Volume

........................is how loud or soft a sound is.

• Bass

• Pitch

• Volume

The transfer of thermal energy from a warmer object to a cooler object is ......................

• Heat energy

• Potential energy

• sound energy

You hear a musical instrument. It has a low frequency and a high volume. What sound is the instrument making?

• a low-pitched, loud sound

• a high-pitched, loud sound

• a low-pitched, soft sound

Matter is anything that has mass and takes up space.

• true

• false

Insulators allow electricity to pass easily.

• true

• false