Science Study Guide 22-23

What is friction?

• A force that supports the motion of an object

• A force that has no effect on the motion of an object

• A force that opposes the motion of an object

• A force that creates the motion of an object

Which materials allow electricity to easily flow through them?

• Wood

• Plastics

• Rubber

• Metals

What is a simple circuit composed of?

• Bulb, battery, and wire

• Bulb, battery, and switch

• Bulb, switch, and wire

• Battery, switch, and wire

What happens if there is an opening in a circuit?

• The circuit will produce more energy

• The circuit will become more efficient

• Electricity will not flow within the circuit

• Electricity will flow within the circuit

What is static electricity?

• The generation of electricity by rubbing certain materials together

• The transfer of negatively charged particles between materials

• The transformation of electrical energy into different forms

• The flow of electricity through a wire

What can electrical energy be transformed into?

• Nuclear, solar, and wind energy

• Sound, light, and heat energy

• Kinetic, potential, and chemical energy

• Radiant, mechanical, and thermal energy

What creates a magnetic field when a current flows through it?

• Wood

• Wire

• Plastics

• Rubber

Which materials do not allow electricity to flow easily through them?

• Plastics

• Metals

• Rubber

• Wood

What is the central idea of electricity flowing through circuits?

• Energy can only be used for lighting

• Energy can move from one location to another through electrical circuits

• Energy can only be transformed into one form

• Energy can only be used for heating

What is the main purpose of a closed circuit?

• To transform electrical energy into different forms

• To generate static electricity

• To allow electricity to flow within the circuit

• To prevent electricity from flowing