Exploring Science and Electricity

What is the first step of the scientific method?

• Formulate a hypothesis

• Conduct an experiment

• Analyze the data

• Make an observation

What do we call a testable prediction in an experiment?

• Theory

• Hypothesis

• Conclusion

• Observation

Which material allows electricity to flow easily?

• Conductors

• Dielectrics

• Semiconductors

• Insulators

What is an example of an insulator?

• Aluminum

• Iron

• Rubber

• Copper

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What are the three main components of a simple circuit?

• Power source, load, conductive path

• Battery, resistor, switch

• Generator, transformer, diode

• Capacitor, inductor, relay

What is the purpose of a switch in a circuit?

• To convert AC to DC in a circuit.

• To control the flow of electricity in a circuit.

• To store electrical energy for later use.

• To increase the voltage in a circuit.

Why is it important to have a hypothesis before an experiment?

• It is important to have a hypothesis before an experiment because it guides the research process and helps in making predictions.

• A hypothesis is only needed after the experiment is completed.

• A hypothesis is irrelevant to the outcome of the experiment.

• Having a hypothesis complicates the research process unnecessarily.

What happens to the flow of electricity in a broken circuit?

• The flow of electricity stops.

• The flow of electricity becomes intermittent.

• The flow of electricity remains the same.

• The flow of electricity increases.

Can you name a common conductor of electricity?

• Plastic

• Copper

• Rubber

• Wood

What safety equipment should you use when working with electricity?

• Rubber boots, metal tools, safety helmet

• Cotton gloves, plastic tools, face mask

• Wooden ladder, leather gloves, ear protection

• Insulated gloves, safety goggles, non-conductive tools, voltage tester.