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Unit 2

Total questions: 40

Worksheet time: 20mins

Name
Class
Date
1.

What is the equation for finding resistance?

a)

V / I

b)

V / V

c)

I x V

d)

R / V

2.

Resistance is measured in

a)

amps

b)

volts

c)

ohms

d)

overthrowing the government

3.

True or False: You should always replace fuses with the same rating

a)

True

b)

False

4.

If you add another light (resistor) to a parallel circuit:

a)

the current in the circuit goes down when you add another path

b)

the total resistance of the circuit stays the same

c)

the total resistance of the circuit goes up

d)

the total resistance of the circuit goes down

5.

A student removes a bulb from a circuit and the other bulbs continue to work. This circuit is:

a)

series

b)

parallel

6.

A fuse is used to:

a)

break the connection and save the device or environment

b)

add an additional path to the circuit

c)

increase the cost of a circuit

d)

monitor the amount of current flowing from the hot (small slot) to neutral (large slot)

7.

This is an example of what circuit?

a)

series

b)

parallel

8.

True or false: Hydraulic Systems have an exhaust point after liquid is used.

a)

True

b)

False

9.

When you add another light to a series circuit, what happens to the current?

a)

Goes up

b)

Goes down

c)

Stays the same

10.

Which law states that a volume of gas is proportional to its temperature?

a)

Charles's

b)

Boyle's

c)

Bernoulli

d)

Pascal

11.

One burnt out bulb is preventing a string of lights from working. This string of lights was made in:

a)

parallel

b)

series

12.

 Diameterpitch\frac{Diameter}{pitch}  This equation describes the IMA of what simple machine?

a)

Wheel and Axle

b)

Screw

c)

Pulley

d)

Inclined Plane

13.

What is this a schematic of?

a)

Battery

b)

Switch

c)

Resistor

d)

Lightbulb

14.

A safety device that prevents electrical shock at an outlet is called

a)

Breaker Box

b)

Fuse

c)

GFCI

d)

Short circuit

15.

Which one of these equations is correct regarding pressure, force, and area?

a)

P = A / F

b)

P = F / A

c)

A = P x A

d)

F = P / A

16.

Current is measured in

a)

amps

b)

water flow

c)

volts

d)

inches

17.

The simple machine described as an inclined plane wrapped around a rod is called a:

a)

Lever

b)

Screw

c)

Wedge

d)

Wheel and axle

18.

Which system deals with pressurized air?

a)

Hydraulics

b)

Pneumatics

19.

Which law states the pressure of a gas increases as its volume decreases?

a)

Charles's

b)

Boyle's

c)

Bernoulli

d)

Pascal

20.

Which class lever will always have an IMA greater than 1?

a)

1

b)

2

c)

3

21.

What system is this a schematic of?

a)

Electrical

b)

Series

c)

Pneumatics

d)

Hydraulics

22.

What is the equation for finding Voltage?

a)

V x R

b)

R / I

c)

I x R

d)

V / I

23.

Force is expressed in:

a)

Newtons

b)

Pascals

c)

meters squared

24.

True or False: Liquids are compressible.

a)

True

b)

False

25.

In a parallel circuit, the current:

a)

only takes on path

b)

has at least one point where the current divides

c)

takes only one path when there are other paths connected

d)

takes multiple paths called trees

26.

The IMA for a pulley is defined as:

a)

The number of pullies

b)

The weight of the force

c)

Number of loops

d)

Number of supporting ropes

27.

What class lever is this?

a)

1

b)

2

c)

3

28.

The device used to pump air in a sealed container to build pressure is called an:

a)

Valve

b)

Exhaust

c)

Resevior

d)

Air Compressor

29.

What happens to the pressure of water in a uniform pipe as it travels up to a higher elevation?

a)

Increases

b)

Stays the same

c)

Gets hotter

d)

Decreases

30.

Two inclined planes put together is a description of what simple machine?

a)

Lever

b)

Wedge

c)

Wheel and Axle

d)

Screw

31.

Which law states that when the speed of a liquid increases, the pressure will decrease?

a)

Charles's

b)

Boyle's

c)

Bernoulli

d)

Pascal

32.

What is this a schematic of?

a)

lightbulb

b)

switch

c)

motor

d)

battery

33.

Pressure is expressed in:

a)

Newtons

b)

Peer

c)

Pascals

34.

A lift used to move a car vertically would primarily use what power souce?

a)

Hydraulics

b)

Pneumatics

35.

With an inclined plane, the trade off for having to do less work is:

a)

getting fired

b)

moving a heavier weight

c)

moving the weight a longer distance

36.

An unintended path for electricity is called

a)

a fuse

b)

short circuit

c)

GFCI

d)

a breaker

37.

This is an example of what circuit?

a)

series

b)

parallel

38.

The usage point of a pneumatic system would be the same thing as a ____________ in a hydraulic system?

a)

Pump

b)

Value

c)

Actuator

d)

Reservoir

39.

Which class lever will always have a IMA less than 1?

a)

1

b)

2

c)

3

40.

What class lever is this?

a)

1

b)

2

c)

3