Cycle 5 Practice I

What is the primary function of a generator in terms of electric force?

• To convert electrical energy into mechanical energy

• To convert mechanical energy into electrical energy

• To store electrical energy

• To amplify electrical signals

Which component in a motor is primarily responsible for creating a magnetic field?

• The rotor

• The stator

• The commutator

• The brushes

How does a transformer transfer energy between circuits?

• By using chemical reactions

• By using electromagnetic induction

• By using thermal conduction

• By using mechanical movement

Which of the following is an example of simple harmonic motion?

• A car moving on a highway

• A pendulum swinging back and forth

• A ball rolling down a hill

• A leaf falling from a tree

What type of wave is a sound wave?

• Transverse wave

• Longitudinal wave

• Surface wave

• Electromagnetic wave

Which of the following best describes the motion of a mass on a spring?

• Circular motion

• Linear motion

• Simple harmonic motion

• Random motion

Which of the following is a characteristic of transverse waves?

• Particles move parallel to the direction of wave propagation

• Particles move perpendicular to the direction of wave propagation

• Particles do not move at all

• Particles move in a circular motion

What is the primary role of a transformer in an electrical circuit?

• To increase or decrease voltage

• To convert AC to DC

• To store electrical energy

• To generate electricity

Which of the following best describes wave energy propagation in a rope?

• Energy is transferred through the rope without moving the rope itself

• Energy is transferred by moving the entire rope

• Energy is transferred by creating a vacuum in the rope

• Energy is transferred by heating the rope