Electricity/EM Quiz 2 Review

Which of the following is NOT needed in a circuit? A. a closed loop B. a switch C. conductor D. energy source

myopia (nearsightedness) is when the eyeball is too (short/long) and the image falls (in front of/behind) the retina

Which electrolyte would result in the highest voltage? a. Milk b. Lemon Juice c. Salt Water

Which light bulb will be the brightest?

In a house, when wiring to ensure if one lightbulb breaks, the others will keep using you should use a ______circuit

To focus on nearby objects, the eye muscles must (relax/contract)

Describe what the reflected image would look like.

When light travels through a less dense to more dense medium, the ray ...

What does 1 represent?

the lens at the front of the eye is called the _____________

When resistance increases, the current will....

Describe what the reflected image would look like

The reflected image in a concave mirror is smaller or larger than the object?

What does 3 represent?

The reflected image in a concave mirror is closer or further than the actual object?

To correct hyperopia (farsightedness), a _____ lens should be used

When light travels through a more dense medium into a less dense one, the ray

When voltage increases, current will....

What does this symbol represent?

The angle of incidence is _________ to the angle of reflection

If the bulb marked X burns out A. the other two bulbs become brighter B. none of the bulbs light C. the other two bulbs become dimmer D. the other two bulbs remain the same

Which of the following would produce the greatest voltage?

Which electrode combination would result in a higher voltage? a. zinc and zinc b. zinc and copper

The voltage in a parallel circuit is the (same/different) everywhere in the circuit