Physics Quiz for Grade 1

What is a tuned amplifier?

• An electronic amplifier that is designed to amplify a specific range of frequencies.

• A type of musical instrument

• A device used to measure temperature

• A tool for cutting wood

What is the purpose of a tuned amplifier?

• To decrease the amplitude of all frequencies

• To select and amplify a specific range of frequencies while rejecting others

• To convert electrical signals to mechanical vibrations

• To amplify all frequencies equally

How does a tuned amplifier differ from other types of amplifiers?

• It amplifies a specific range of frequencies.

• It is not used for audio signals.

• It amplifies all frequencies equally.

• It has a lower power output.

What are the key components of a tuned amplifier?

• Inductor, capacitor, and resistor

• Resistor, inductor, and transformer

• Battery, wire, and switch

• Transistor, diode, and op-amp

How does a tuned amplifier affect the frequency of the input signal?

• It can increase the volume of the input signal.

• It can decrease the frequency of the input signal.

• It can change the color of the input signal.

• It can amplify the specific frequency of the input signal.

What is gain in an amplifier?

• Decrease in amplitude of the output signal

• No change in the amplitude of the output signal

• Increase in amplitude or power of the output signal

• Increase in frequency of the output signal

How is gain calculated in an amplifier?

• Output voltage plus input voltage

• Output voltage multiplied by input voltage

• Input voltage divided by output voltage

• Output voltage divided by input voltage

What is frequency response in an amplifier?

• The color of the amplifier's casing

• The amount of electricity required to power the amplifier

• Range of frequencies that the amplifier can handle without significant loss of signal quality

• The number of times the amplifier is used in a given time period

How does frequency response affect the performance of an amplifier?

• It affects the performance by determining how well the amplifier can amplify different frequencies within its range.

• It determines the weight of the amplifier

• It has no effect on the performance of the amplifier

• It only affects the appearance of the amplifier

What are the factors that can affect the frequency response of an amplifier?

• Color of the amplifier, temperature, and brand of the amplifier

• Type of amplifier, components used, and design of the amplifier

• Size of the amplifier, language used, and location of the amplifier

• Weight of the amplifier, time of day, and material of the amplifier