Duplicate of Honors review Game Q.2

Question 1

A circuit has 8 amps of current flowing through three 10 ohm resistors in series. Voltage=

Accepted Answer

240 volts

Question 2

The gravitational force between two objects is 36N. Reduce the seperation by half, the force is

Accepted Answer

144N

Question 3

If 50 grams of ice at 0°C and 50 grams of water at 0°oC, then it is true that

Accepted Answer

The water has more thermal energy than the ice

Question 4

A 2400 watt toaster is plugged into a 120 volt outlet. The current drawn is....

Accepted Answer

20 amps

Question 5

An object falls from 25 M up. What is the object's velocity after the fall? (Hint try any mass)

Accepted Answer

22.1 m/s

Question 6

What forms of energy are present in a stationary book at room temperature?

Accepted Answer

Thermal

Question 7

1000 Joules of work is completed in 10 seconds. How much power is used?

Accepted Answer

100 Watts

Question 8

This state of matter is a poor conductor of heat.

Accepted Answer

Liquids, Gasses

Question 9

A 150 kg person falls from 10 m. What is their kinetic energy just before impact?

Accepted Answer

14700J

Question 10

A 1000 W toaster is plugged into a 120 volt outlet. How much resistance does the toaster have?

Accepted Answer

14.4 ohms

Question 11

If 50 grams of ice at0°C and 50 grams of water at 25°oC, then it is true that

Accepted Answer

The water has a higher average kinetic energy than the ice

Question 12

A T.V has a resistance of 12 ohms. The voltage is 120V. how much current will twoT.Vs draw?

Accepted Answer

20 amps

Question 13

The gravitational force between two objects is 36N. Double both masses and the force is

Accepted Answer

144N

Question 14

As a book falls from a shelf Potential energy ________ While Kinetic energy __________

Accepted Answer

Decreases, Increases

Question 15

The following materials conduct energy easily

Accepted Answer

Metals

Question 16

A 12 volt battery supplies 2 amps of current. A 9 volt battery would provide ____ amps.

Accepted Answer

1.5 amps

Question 17

A 1000 W toaster is plugged into a 120 volt outlet. How much current does the toaster draw?

Accepted Answer

8.333 Amps

Question 18

Which of the following materials makes the best insulator for all types of heat transfer

Accepted Answer

A gas

Question 19

Which of the following has the most thermal energy?

Accepted Answer

An ice berg 15,000,000,000,000 ml 273 K

Question 20

What causes a circuit breaker to trip?

Accepted Answer

The current across a circuit is too high

Question 21

Two bulbs are connected in series. If one of the bulbs burns out, the other bulb....

Accepted Answer

The second bulb goes out

Question 22

The gravitational force between two objects is 36N. Double the distance and the force is

Accepted Answer

9N

Question 23

Why has the theory of evolution changed since Darwin first wrote it in the mid-1800s?

Accepted Answer

The existing theory is revised as new discoveries are made.

Question 24

Which of the following is an example of no heat transfer?

Accepted Answer

Two objects of equal temperatures, in space!

Question 25

Which of the following is an example of conduction?

Accepted Answer

Two objects in contact transfer heat between them.

Question 26

Liquids and gasses expand, and rise when heated, this causes

Accepted Answer

Convection

Question 27

What amount of force is required to apply 500 watts of power for 10 seconds.Distance =5m

Accepted Answer

1000 N

Question 28

Which of the following is an example of convection?

Accepted Answer

Water on the bottom of a pot heats, expands, and rises.

Question 29

These three things affect the amount of thermal energy in an object

Accepted Answer

Temperature, mass, and specific heat

Question 30

Choose the circuit with the least resistance. Assume all light bulbs are equal resistors

Accepted Answer

Three light bulbs in parallel

Question 31

Calculate energy required to raise the temp. of200 g of water from 40 ° C to 100°C. (C= 4.18)

Accepted Answer

50,160 Joules

Question 32

A force of 100 Newtons is applied over a distance of 20 meters. How much work is done?

Accepted Answer

2000 J

Question 33

A 150 kg person travels at 10 m/s. What amount of kinetic energy do they possess?

Accepted Answer

7500J

Question 34

The gravitational force between two objects is 36N. Double the mass of one makes the force....

Accepted Answer

72N

Question 35

What is the potential energy of a 5kg pendulum when it is 2 meters from the ground?

Accepted Answer

98J

Question 36

Which of the following is an example of Radiation?

Accepted Answer

The sun warms the earth's surface

Question 37

5000 J of work is done moving an object 10 meters. How much force was applied?

Accepted Answer

500 Newtons

Question 38

Which of the following laws of physics is the foundation ofthermodynamics

Accepted Answer

The law of conservation of energy

Question 39

Which has more potential energy? Assume all objects have equal mass.

Accepted Answer

A jet traveling at 100m/s at an altitude of 10,000M

Question 40

What kinds of heat transfer is possible to an isolated system?

Accepted Answer

Nothing

Question 41

The gravitational force between two objects is 36N. Triple the separation and the force is

Accepted Answer

4N

Question 42

A battery is connected to a light bulb. Describe the energy transformations.

Accepted Answer

Chemical energy isconverted to electrical then light	hermal

Question 43

A 12 volt battery is connected to a 3 ohm resistor. How much current flows through the circuit?

Accepted Answer

4 amps

Duplicate of Honors review Game Q.2

Questions 43

Duplicate of Honors review Game Q.2

Questions 43