Question

@IhteshamMalik plz help

Answer 1

Yes?

Answer 2

12. Use the image below to answer the following question.

pair of sandals with cork bottoms
A beachgoer leaves a pair of sandals on the shore while she swims. When she puts the sandals on again, the bottom of her feet will feel hot because _____. Choose all that apply.
(2 points)
the sandals were warmed by radiation
heat will transfer to her feet by radiation
heat will transfer away from her feet by conduction
heat will transfer to her feet by conduction

13. A satellite in space experiences direct sunlight and heats up. During periods when it receives no direct sunlight, (1 point)
the satellite cools off by radiation.
the satellite cools off by conduction.
the satellite maintains a constant temperature.
the satellite cools off by convection.

Answer 3

The pic goes with #12

Answer 4

12. the sandals were warmed by radiation.

Answer 5

Q.13. The satellite cools off by radiation.

Answer 6

for #12. you can pick 2 answers

Answer 7

The it would be A. and D. I believe

Answer 8

2nd is, heat will transfer to her feet by conduction.

Answer 9

Which of the following energy changes occurs as a bow is drawn and released?

(1 point)
gravitational potential to chemical potential
magnetic potential to kinetic
elastic potential to kinetic
kinetic to thermal
16. Jerri is planning to rebuild the engine of an antique car. She has chosen all the materials she needs, including a high-quality synthetic oil to reduce friction in the engine. What effect will reducing friction have on the engine’s performance? Choose all that apply. (2 points)
Reduced friction means reduced energy.
Reduced friction means reduced heat transfer.
Reduced friction means reduced efficiency.
Reduced friction means reduced work output.
17. During a space shuttle landing, a parachute deploys from the back of the shuttle as it taxis down the runway. In addition to the speed brake, the parachute helps the shuttle come to a complete stop. How does the parachute help during this process? (1 point)
It increases the weight of the shuttle.
It increases the potential energy of the shuttle.
It increases friction by air resistance.
It increases heat transfer by radiation.

Answer 10

Elastic potential to kinetic.

Answer 11

Reduced friction means reduced heat transfer. and reduced friction means reduced energy.

Answer 12

It increases friction by air resistance

Answer 13

for 16. you can pick 2

Answer 14

i picked two... see again my answers.

Answer 15

18. For an experiment, you place 15 g of ice with a temperature of –10oC into a cup and label it A. You also place
25 g of ice at the same temperature into another cup and label it B. Which of the following statements is true? (1 point)
A.The average kinetic energy of the ice in cup A is less than that in cup B.
B.The average kinetic energy of the ice in cup A is greater than that in cup B
C.The average kinetic energy of the ice in cup A is equal to that in cup B.
D.The average kinetic energies of the ice in cup A and the ice in cup B are not comparable.

19. A man relaxes in his hot tub after a long day at work. His body temperature is 98.6°F. The temperature of the water in the hot tub is 102°F. How does heat transfer? (1 point)
A.Heat does not transfer between his body and the water.
B.Heat transfers to his body from the water by conduction.
C.Heat transfers from his body to the water by convection.
D.Heat transfers from his body to the water by conduction.

20.If magnet B is moved closer to magnet A, how will magnetic potential energy be affected?

(1 point)
It will become zero.
It will increase.
It will decrease.
It will stay the same.

Answer 16

21. When you turn on a television, you transform electrical energy into____. Choose all that apply. (3 points)
heat energy
light energy
elastic potential energy
sound energy

This device is a burner from an electric stove. It is used to transfer heat to a pot by

(1 point)
conduction.
convection.
radiation.
friction.

23. A 60.0 N circus performer performs a high wire act 5.0 m above ground. About how much gravitational potential energy does the performer have? (1 point)
12.0 J
56.0 J
62.0 J
300.0 J
(the pic goes to #22

Answer 17

Q. 18. C

Answer 18

thx

Answer 19

Q.19. B

Answer 20

:)

Answer 21

Q. 20. B

Answer 22

Q.21. heat energy , light energy , sound energy

Answer 23

thx

Answer 24

Q.22. Conduction

Answer 25

Q.23. 300 J

Answer 26

24. Why does a thrown football have both potential and kinetic energy? What is the combined energy called? (5 points)

How do the principles of convection, conduction, and radiation explain how the water in the saucepan gets hot?(6 points)
(EXPLAIN) @Ray_Rae1297 @TheOcean<3 @IhteshamMalik

Answer 27

You can find an object’s mechanical energy by adding the object’s kinetic energy
and potential energy. so the combined energy is called Mechanical energy.

Answer 28

Is that for #24

Answer 29

yes that is of 24. and its also of 24.
When a foot ball is in the air, it have potential energy beacause it is above the earth surface. potential energy is due to the position of the object. so a foot ball have potential energy when thrown. and foot ball is also moving. the energy due to motion of the body is called Kinetic energy. so football have kinetic energy also... Foot ball have both kinetic energy and potential energy, so we can say it have combination of energies. means " Mechanical energy".

Answer 30

Do you know #25 @IhteshamMalik

Answer 31

Conduction is the transfer of heat through two touching objects. Heat will always travel from the warmer object to the cooler object.

Radiation is transfer of heat through waves of matter: the Sun, for example, gives off rays of light and heat.

Convection is the transfer of heat through fluids-- either liquid or air. Warm fluid will rise, and cool fluid will sink

Answer 32

Thx

Answer 33

:) Bored

Answer 34

me too!! :P

Answer 35

I hate sCHool

Answer 36

well school is over for meh :P time to go to college!! XD

Answer 37

Thx @IhteshamMalik i got 23/27 if you want me to tell anyone the ones wrong message me :)

Answer 38

1. D
2. D
3. C
4. C
5. A
6. B
7. A
8. C
9. D
10. A
11. C
12. A
13. A, D
14. A
15. C
16. A,B
17. C
18. C
19. B
20. B
21. A,B,D
22. A
23. D

I got all of them correct (: