Ip 2 Review

Objects that have opposite charges . . .

• are repelled by each other, and the force of repulsion pulls them toward each other.

• are attracted to each other, and the force of attraction pushes them away from each other.

• are attracted to each other, and the force of attraction pulls them toward each other.

• are repelled by each other, and the force of repulsion pushes them away from each other.

Tags

NGSS.MS-PS2-3

Anything that has mass and takes up space is called __________.

• plasma

• matter

• weight

• volume

An object becomes positively charged when it ____________________.

• loses electrons

• loses protons

• gains electrons

• gains protons

Look at Project #9. The paperclip at the top allows electricity to flow through it easily. This paperclip is __________________________.

• An insulator

• A conductor

• A circuit breaker

• A resistor

What does a resistor do?

• It speeds up the current

• It decreases the voltage

• It slows down the current

In a transverse wave, the distance from the top of one crest to the top of the next crest is known as the ______________________.

• Wavelength

• Amplitude

• Frequency

• Wave velocity

Tags

NGSS.HS-PS4-1

Which of the following shows the waves arranged from the lowest frequency to the highest frequency?

• 3, 1, 2

• 2, 1, 3

• 3, 2, 1

• 1, 2, 3

Tags

NGSS.MS-PS4-1

What is the wavelength of this wave?

• 2.40 cm

• 1.50 cm

• 5.0 cm

• 1.00 cm

Tags

NGSS.MS-PS4-1

In which of the following environments should you expect the speed of sound to be fastest?

• solid

• liquid

• gas

• vacuum of space

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which option below best describes the normal range of human hearing?

• 0dB to over 160,000 dB

• 20 dB to 20,000 dB

• 20 Hz to 20,000 Hz

• 100 Hz to 20,000 Hz