2nd Six Weeks DBA Review

Front

What is a complete circuit?

Back

A complete circuit is a closed loop that allows electricity to flow, enabling devices like lamps to function.

Front

What happens when a switch is open in a circuit?

Back

When a switch is open, the circuit is incomplete, and electricity cannot flow, so devices like lightbulbs will not light up.

Front

Why is it important to use blocks of equal mass in an experiment?

Back

Using blocks of equal mass ensures that the results are consistent and that any changes observed are due to the variable being tested.

Front

What does conducting multiple trials in an experiment help to achieve?

Back

Conducting multiple trials helps to ensure the reliability and accuracy of the results by minimizing the impact of random errors.

Front

What is the purpose of using different lengths of elastic in an experiment?

Back

Using different lengths of elastic can help to investigate how length affects the elasticity and behavior of the material.

Front

What is the role of wires in a circuit?

Back

Wires connect different components in a circuit, allowing electricity to flow between them.

Front

What is the significance of a powerful magnet in a circuit?

Back

A powerful magnet is not necessary for a basic circuit; circuits primarily require a power source and a complete path for electricity.

Front

What is the function of a lightbulb in a circuit?

Back

A lightbulb converts electrical energy into light energy when electricity flows through it.

Front

What does it mean to pull each block of wood in the same way for each trial?

Back

It means to apply the same force and method of pulling to ensure that the results are comparable across trials.

Front

What is the effect of removing certain wires from a circuit?

Back

Removing certain wires can break the circuit, stopping the flow of electricity and causing devices to turn off.