Physics Fall 2024 Final Exam Review

Front

A material that doesn't conduct electricity is called an ________ .

Back

Insulator

Front

When an object gains electrons it becomes __________.

Back

Negatively charged

Front

Given a right triangle, estimate the length of the missing side to the nearest tenth of a centimeter: 5 cm, 10 cm, ?

Back

11.6 cm

Front

A material in which electrons are not able to move easily is a(n) ________ .

Back

Insulator

Front

Which of the following will BEST transport electrons around an electrical circuit? Insulator, Resistor, ________ .

Back

Conductor

Front

What is the definition of a conductor in physics?

Back

A material that allows the flow of electric current.

Front

What happens to an object when it loses electrons?

Back

It becomes positively charged.

Front

What is resistance in an electrical circuit?

Back

The opposition to the flow of electric current.

Front

What is the unit of electrical resistance?

Back

Ohm (Ω)

Front

What is the formula for calculating electrical power?

Back

Power (P) = Voltage (V) × Current (I)