Test- Energy

Question 1

What scene shows the same type of thermal energy transfer?

A. Pan on stove
B. Solar panel on a roof in the sun
C. Iron on a ironing board
D. Kettle on a stove

Answer 1

A and C

C3 thermal energy

Question 2

As the time required to do a givens amount of work decreases, the power developed-

Answer 2

Decreases

C4 work and power

Question 3

The diagram to the right shows four locations in a temperature field. The temperature of each location is given in degrees Celsius. Heat energy will normally flow from:

         B=20°C
                                                     D=29°C

A=30°C

                             C=35°C

Answer 3

High temp to low temp

C3 thermal energy

Question 4

The mechanical energy of a coconut falling from a tree ____.

Answer 4

Remains constant

C2 law of conservative of energy

Question 5

Which picture shows thermal energy transfer by convection?

A. Pan on stove
B. Solar panel on a roof in the sun
C. Iron on a ironing board
D. Kettle on a stove

Answer 5

D

C3 thermal energy

Question 6

Green plants convert light energy from the sun into ____ during photosynthesis.

Answer 6

Chemical potential energy

C2 law of conservation of energy

Question 7

Thermal energy is transferred to the solar panel in picture B by

Answer 7

Radiation

C3 thermal energy

Question 8

44. What do you always add at the end of velocity

Answer 8

The direction

Question 9

45. When asking about height always remember to use _____.

Answer 9

GPE