Which unit is used to measure electric current?

A microwave oven heats food by causing molecules in the food to vibrate. Which electromagnetic wave is responsible?

In a series circuit, the current is __________.

Which electromagnetic wave has the highest frequency?

The symbol represents which electrical component?

What is electric current?

A doctor uses a type of electromagnetic wave to produce images of a patient's bones. Which wave is being used?

The symbol represents which electrical component?

Which component opens or closes an electric circuit?

Which electromagnetic wave has the longest wavelength?

Which formula represents Ohm's Law?

A student spends a long time under direct sunlight and develops sunburn. Which electromagnetic wave is mainly responsible for this effect?

Which device measures voltage?

When another resistor is added in series, the total resistance __________.

The symbol represents which electrical component?

Which particle carries electric current in a metal wire?

Visible light is found between __________.

Which instrument measures electric current?

Electromagnetic waves can travel through __________.

Two identical bulbs are connected to the same battery. After a second bulb is added in series, both bulbs become dimmer. What is the best explanation?

Which electromagnetic wave carries the most energy?

The symbol represents which electrical component?

If the voltage remains constant, increasing the resistance will __________.

Which of the following provides the electrical energy needed for current to flow?

A student connects a 12 V battery to a resistor. The current flowing through the resistor is 2 A. What is the resistance of the resistor?

A communication company uses electromagnetic waves with the longest wavelength to transmit radio programs over long distances. Which wave is most appropriate?

Maria connects a battery, a bulb, and a switch using wires. The bulb does not light because the switch is open. What should Maria do to make the bulb light?

Which electromagnetic wave is commonly used for medical imaging of bones?

The symbol represents which electrical component?

Ohm's Law describes the relationship among __________.

A hospital needs to sterilize medical equipment by destroying microorganisms. Which electromagnetic wave would be most appropriate, but also requires careful handling because of its harmful effects on living cells?

In a parallel circuit, the voltage across each branch is __________.

Which electromagnetic wave is commonly used in television and radio broadcasting?

The symbol represents which electrical component?

A student compares two circuits using the same battery. Circuit A has one bulb, while Circuit B has two identical bulbs connected in series. Which statement correctly compares the current in the two circuits?

The symbol represents which electrical component?

A circuit has a voltage of 12.5 V and a resistance of 4.0 Ω. Using Ohm’s Law, what is the current flowing through the circuit?

The symbol represents which electrical component?

A resistor has a resistance of 7.5 Ω and carries a current of 1.6 A. What is the voltage across the resistor?

Two resistors, 4.5 Ω and 7.5 Ω, are connected in series to a 24 V battery. What is the current flowing through the circuit?