Physics and Electronics Quiz

What is Newton's third law of motion?

• For every action, there is an equal and opposite reaction.

• For every action, there is a greater and opposite reaction.

• For every action, there is a lesser and opposite reaction.

• For every action, there is no reaction.

What happens when you push on a wall?

• The wall pushes back on you with a greater force.

• The wall pushes back on you with a lesser force.

• The wall pushes back on you with an equal force.

• The wall does not push back on you.

Describe an example of Newton's third law in everyday life.

Identify the action and reaction forces in the following scenario: A swimmer pushes water backward with their hands.

What is the definition of forward bias in an electronic circuit?

• The voltage applied to a diode or LED is in the opposite direction of the current flow.

• The voltage applied to a diode or LED is in the same direction as the current flow.

• The voltage applied to a diode or LED is equal to the current flow.

• The voltage applied to a diode or LED is zero.

What is the function of a resistor in an electronic circuit?

• To increase the voltage in a circuit

• To decrease the voltage in a circuit

• To store energy in a circuit

• To control the flow of current in a circuit

Explain the difference between forward bias and reverse bias in an electronic circuit.

Describe the relationship among LEDs, diodes, resistors, and capacitors in an electronic circuit.

What is the role of a substation in an electricity transmission system?

• To generate electricity

• To transmit electricity

• To transform electricity to higher or lower voltages

• To distribute electricity to consumers

What is an advantage of overhead transmission lines?

• They are aesthetically pleasing

• They are less affected by weather

• They are cost-effective

• They are easier to maintain