Free Printable Final review quiz 202

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Final review quiz 202

Total questions: 50

Worksheet time: 2hrs 37mins

Name

Class

Date

The heat absorbed by melting a solid is known as

latent heat of fusion

latent heat of solid

latent heat of liquid

latent heat of vaporisation

Water molecules have the greatest kinetic energy in

Ice at 0 ⁰C

Water at 90 ⁰C

Water at 373 K

Steam at 150 ⁰C

Calculate the energy absorbed by 30 g of 100 ⁰C water that is turned into 100 ⁰C.

67 800 J

6 7800 J

678 J

67.8 J

The SI unit for ................. is Joule, J.

heat

temperature

It is possible to cook food much faster with a pressure cooker as shown above. Why is it easier to cook food using a pressure cooker?

More heat energy can be supplied to the pressure cooker

Heat loss from the pressure cooker can be reduced.

Boiling point of water in the pressure cooker is raised

Food absorbs more heat energy from the high pressure steam

How much heat energy is required to raise the temperature of a 4kg iron bar from 32⁰C to 52⁰C? (Specific heat capacity of iron = 452 Jkg^{-1 0}C^-1).

57 kJ

36 kJ

94 kJ

152 kJ

A sample of gas with a volume of 30.0 mL at 25.0^oC is heated to 50.0^oC. What is the new volume of the gas?

P1V1 = P2V2

P1/T1 + P2/T2

PV = nRT

V1/T1 = V2/T2

If the pressure exerted by a gas at 25 degrees C in a volume of 0.044 L is 3.81 atm, how many moles of gas are present?

.002766 mole

.0069 mol

2.766 mol

9.887 mol

14.275 L of 7 mol of SF₆ is held at -25.8^oC. At what pressure is it being held at?

-1.04 atm

41.4 atm

9.95 atm

-4.32 atm

10.

300 K = _____ °C

573

-573

-27

11.

Convert: 25.0 ^oC to ^oF:

77 F

77 C

100 F

100 C

12.

Convert -40 degrees C to F degrees

-40 degrees F

-8 degrees F

13.

Calculate the force exerted between two charged objects separated by a distance of 0.6 m. One object has a charge of -5 C and the other has a charge of +2.0 C.

-1.5E-11 N

2.5E-11 N

-2.5E11 N

-7.5E-10 N

14.

A 2-C charge and 4 -C charge attract each other with 10 N of force. How much will a 2-C charge and 8-C charge attract each other when placed the same distance apart?

5 N

12 N

10 N

20 N

15.

How many electrons are necessary to produce 1.0 C of negative charge? (e = 1.60 × 10^-19 C)

6.3 × 10¹⁸

6.3 × 10⁹

1.6 × 10¹⁹

1.6 × 10⁹

16.

Two like charges:

neutralize each other.

repel each other.

must be neutrons.

attract each other.

17.

The equation represents the mathematical relationship between charge and distance, where Coulomb's Constant k = 9.0 x 10⁹ N•m²/C². Solve the following problem using this equation: Two point charges, one with a charge of +0.75 Coulomb and the other with a charge of +1.5 Coulomb are separated by a distance of 1.50 meter. Determine the magnitude of the electrical force of repulsion between them.

F_elect = 4.5 x 10⁹ N

F_elect = 9.0 x 10⁹ N

F_elect = 5.5 x 10¹⁰ N

F_elect = 6.5 x 10⁸ N

18.

Electric Charge is a basic property of elementary particles of which all matter is composed (electrons, protons). There are two types of charge: Positive charges are carried by ________, while negative are carried by __________.

protons, electrons

protons, neutrons

neutrons, electrons

electrons, protons

19.

What charge does an atom have if it GAINS an electrons?

Positive (+)

Negative (-)

20.

The distance between two charges doubles at the same time that the charge on each also doubles. What happens to the electric force?

doubles

quadruples

cut in half

no change

21.

A point charge Q is far from all other charges. At a distance of 2 m from Q, the electric field is 20 N/C. What is the force a charge of 5 Coulombs feels?

4 N

100 N

40 N

10 N

22.

An electrostatic force of 2 X 10². newtons is exerted on a charge of 4 coulomb at point P in an electric field. The magnitude of the electric field intensity at P is

8 X 10² N/C

5 N/C

2 X 10^-2 N/C

50 N/C

23.

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

1 Ohm

3 Ohms

4 Ohms

12 Ohms

24.

How many Volts would we need to produce a current flow of 8 Amps through a 6 Ohm resistor

12 volts

24 volts

1.3333

48 volts

25.

The total resistance in this circuit is

100 ohms

450 ohms

400 ohms

30 ohms

26.

What is the total resistance (RT) across this circuit?

3 kΩ

10 kΩ

13 kΩ

18 kΩ

27.

The current going through the 45 ohm resistor is

0.05 amps

0.2 amps

0.1 amps

5 amps

28.

In a parallel circuit if one of the light bulbs burns out the rest _________.

stop the flow of electricity

can still light up

will go out

of the light bulbs burn out also

29.

which has the highest current flowing through it?

All the same

30.

With the engine running the charging system produces 14.5 Volts what would the current flow be if a resistance of 6 Ohms was present

2.41 Ohms

2.52 Ohms

2.1 Ohms

0.3333 Ohms

31.

If switch 1 and 2 were open, which device(s) would turn on?

none

A and B

C, D, E, F, G

all of them

32.

If a circuit had 4 D-Cell batteries (each 1.5 V) and a lightbulb with resistance of 2 ohms, what is the current that flows through the circuit?

2 A

3 A

6 A

8 A

33.

The total resistance of this circuit is

25.7 ohms

315 ohms

324 ohms

90 ohms

34.

The capacity of a parallel plate condenser is C . Its capacity when the separation between the plates is halved will be

C/2

C/4

35.

Two condensers of capacity 0.3 $\mu$ F and 0.6 F respectively are connected in series. The combination is connected across a potential of 6 Volts. The ratio of energies stored by the condensers will be

1/2

1/4

36.

Three equal capacitors, each with capacitance are connected as shown in figure. Then the equivalent capacitance between and is

C/3

3C/2

37.

The resultant capacitance between and in the following figure is equal to

1 $\mu$ F

3 $3$ F

2undefined F

1.5undefined F

38.

If 4μF and 2μF capacitors are conneced in series, the equivalent capacitor is ___________.

1.33μF

0.75μF

6μF

2μF

39.

A 130 mF capacitor and a 150 mF capacitor are each connected across a 6 V dc source. The voltage

across the 330 pF capacitor is ?

8 Volts

6 Volts

4 Volts

2 Volts

40.

An uncharged capacitor of capacitance 8.0 $\mu F$ is connected to a battery of e.m.f. V and negligible internal resistance. If the charge on each plate of the capacitor is 24 $\mu C$ , what is the value of V?

3.0 V

6.0 V

10 V

14 V

41.

A ray of light traveling from air into crown glass strikes the surface at an angle of 30 degrees. What is the angle of refraction? (air n=1, crown glass n=1.532)

39.7 degrees

19.2 degrees

59.1 degrees

12.3 degrees

42.

Glass has a _____________ index of refraction than air.

Equal

Greater

Less

Impossible to say

43.

If the angle of incidence of light traveling through air, and then striking water is 30 degrees what is the angle of refraction? (n=1 air, n=1.33 water)

15 degrees

22 degrees

43 degrees

17 degrees

44.

Light has the lowest velocity in which medium?
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45

diamond

water

flint glass

barium glass

45.

20.4 degrees

21.2 degrees

22.1 degrees

23.1 degrees

46.

4.69 cm

8.67 cm

5.79 cm

7.69 cm

47.

A ray of light travels from air into glass at an incident angle of 30^o. Find the angle of refraction. (The refractive index of glass is 1.5)

19.7^o

19^o

19.5^o

19.3^o

48.

A pool of water is 10m deep. If the bottom of the pool is viewed perpendicularly from air, how deep does it appear? (refractive index of water = 1.33)

7 m

7.52 m

6.6 m

5.52 m

49.

What happens to light during total internal reflection?

The light reflects back into the original medium at the same angle.

The light refracts closer to the normal line.

The light refracts farther away from the normal line.

The light reflects at the angle it would have refracted at.

50.

_____ cables transmit beams of light without allowing any of the light to escape until it gets to the end of the cable.

Ethernet

Fiber optic

Armored

Coaxial

Reset

Final review quiz 202

Total questions: 50

Worksheet time: 2hrs 37mins

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