Science

Question 1

Define circuit.

Answer 1

A closed path through which electric current flows.

Question 2

True or false: Series circuits have the same current throughout.

Answer 2

TRUE

In series circuits, the current is constant but voltage divides among components.

Question 3

Fill in the blank: Voltage is measured in _______.

Answer 3

Volts

Question 4

What is the role of a resistor in a circuit?

Answer 4

To limit the flow of electric current.

Question 5

Define parallel circuit.

Answer 5

A circuit where components are connected across common points, allowing multiple paths for current.

Question 6

What does an ammeter measure?

Answer 6

The electric current in a circuit, measured in amperes.

Question 7

True or false: Ohm’s Law states V = I × R.

Answer 7

TRUE

V is voltage, I is current, and R is resistance.

Question 8

Fill in the blank: The unit of resistance is _______.

Answer 8

Ohms

Question 9

Mnemonic for different wavelengths
[clue Vegas glasses]

Answer 9

Rich
Men
In
Vegas
Use
Xpensive
Glasses

Question 10

Define refraction.

Answer 10

The bending of light as it passes from one medium to another.

Question 11

True or false: Refraction occurs due to changes in light speed.

Answer 11

TRUE

Light travels at different speeds in air, water, and glass.

Question 12

Fill in the blank: Light bends when it enters a _______ medium.

Answer 12

denser

Question 13

What causes refraction in water?

Answer 13

The change in speed of light as it moves from air to water.

Question 14

Define amplitude.

Answer 14

The maximum distance a wave moves from its rest position.

Question 15

What does frequency measure?

Answer 15

The number of waves that pass a point in one second.

Question 16

Fill in the blank: Wavelength is the distance between _______ of a wave.

Answer 16

two consecutive crests or troughs

Question 17

True or false: Higher amplitude means a wave carries more energy.

Answer 17

TRUE

Question 18

What is the unit of frequency?

Answer 18

Hertz (Hz)

Question 19

Define wave speed.

Answer 19

The distance a wave travels per unit of time.

Question 20

Fill in the blank: The formula for wave speed is _______.

Answer 20

wave speed = frequency × wavelength

Question 21

True or false: Frequency and wavelength are inversely related.

Answer 21

TRUE

As frequency increases, wavelength decreases.

Question 22

What happens to amplitude in a sound wave as it gets louder?

Answer 22

The amplitude increases.

Question 23

What is the relationship between frequency and pitch?

Answer 23

Higher frequency results in a higher pitch sound.

Question 24

Define current.

Answer 24

The flow of electric charge, measured in amperes (amps).

Question 25

What does **voltage** measure?

Answer 25

The electric potential difference between two points, measured in volts.

Question 26

True or false: **Amps** measure the amount of voltage in a circuit.

Answer 26

FALSE ## Footnote Amps measure current, while volts measure voltage.

Question 27

Fill in the blank: **Resistance** is measured in _______.

Answer 27

Ohms

Question 28

What is the unit of **current**?

Answer 28

Amperes (amps)

Question 29

Define **Ohm's Law**.

Answer 29

The relationship between voltage, current, and resistance: V = I × R.

Question 30

True or false: Higher voltage means lower current in a circuit.

Answer 30

FALSE ## Footnote Higher voltage can lead to higher current if resistance remains constant.

Question 31

What happens to current if resistance increases?

Answer 31

Current decreases, assuming voltage remains constant.

Question 32

Fill in the blank: **Power** is calculated using the formula P = V × I, where P is _______.

Answer 32

Power in watts

Question 33

What is the relationship between **amps** and **voltage** in a circuit?

Answer 33

Amps indicate the flow of current, while voltage drives that flow.