Science

1. A(n)_____ is a material that permits the transfer of heat. A(n)____is a meterial that does not permit the flow of heat.* 1 point
A: Insulator, Conductor
B: Conductor, Electric Field
C: Insulator, Electric Field
D: Conductor, Insulator

2. The image below shows a wooden spoon in a boiling pot of water. The wooden spoon is a good example of(n)______because the chef is safe from burning his/hand.*
A: Conductor
B: Insulator
C: Electric Field

3. When camping, it is best to use a metal pot to boil your water because metal is a great example of a(n)______.*
A: Conductor
B: Insulator
C: Electric Field

4. The eagle gliding in the air thermals, or updrafts is an example of*
A: Conduction
B: Convection
C: Radiation
D: Insulation

5. Mrs. Nickles was stirring her coffee with a metal spoon. The coffee transferred the heat to the spoon through _______.*
A: Conduction
B: Convection
C: Radiation
D: Insulation

6. Mrs. Potato Head enjoys sunbathing, which type of heat transfer is occuring?*
A: Conduction
B: Convection
C: Radiation
D: Insulation

7. How are temperature and thermal energy ralated?*
A: Two objects with different amounts of thermal energy also have different temperatures.
B: Thermal energy does not transfer from one object to another.
C: Temperature is one factor that determines the thermal energy of an object.
D : Temperature and thermal energy both measure the total kinetic energy is an an object.

8. Objects A and B are touching. Objects A has a lower temperature than Object B. Which statement must be true?*
A: Object A is a better insulator than Object B.
B: Object B is a better conductor than Object A than Object B.
C: Heat will travel from Object A to Object B.
D: Heat will travel from Object B to Object A.

9. When a posivtively charged object moves in the same direction as the electric field (toward negatively charged objects), the electric potential energy of the object _______.*
A: Increases.
B: Decreases.
C: Stays the same.
D: Becomes zero.

10. Identify the energy transformation occuring in the example below*
A: kinetic to potential
B: kinetic to chemical
C: potential to chemical
D: chemical to kinetic

11. Why do olympic skiers wax the bottom of their skis before a competition?*
A: Increase the amount friction as they are going down the slope
B: Decrease the amount of friction as they are going down the slope
C: Decrease the amount of rolling friction as they are going down the slope
D: Increase the amount of rolling friction as they are going down the slope

I need answers quickly plz, thx๐Ÿ˜‰

  1. 👍
  2. 👎
  3. 👁
  1. 1. D
    2. B
    3. A

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    2. 👎
  2. a
    b
    c

    1. 👍
    2. 👎
  3. Thanks for getting me an F!

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    2. 👎
  4. 1. D
    2. B
    3. A

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    2. 👎
  5. 1.a
    2.a
    3.b

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    2. 👎
  6. Answers : B C B

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    2. 👎

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