Worksheets2nd Nine Weeks Common Assessment Part 2 Review
Total questions: 10
Worksheet time: 19mins
1. Cooking pans are often made of aluminum or copper. Electrical wires made of aluminum and copper are also found in homes. Why are these materials good choices for cooking and electricity?
Metalloids are semiconductors of electricity.
Nonmetals are poor conductors of heat and electricity.
Metals are good conductors of heat and electricity.
Nonmetals are good insulators of heat and electricity.
1. A student was cooking chicken in the frying pan as shown.
What transfer of heat between the pan and the chicken is responsible for cooking the chicken?
Radiation
Conduction
Convection
1. What is an example of thermal energy transfer by radiation?
A metal spoon becoming hot in a bowl of soup
Water boiling in a pot on a burner on the stove
The Sun heating the surface of the Earth
A hot air balloon releasing gas and rising
To explain the difference between elements and compounds, a teacher filled clear boxes with balls. Which box best represents a sample of an element?
a
b
c
d
The diagram above shows a hot plate and an electrical outlet. According to the diagram above, what energy transformation occurs when the hot plate is plugged into the outlet and the control knob is in the "on" position?
Thermal energy to electrical energy
Electrical energy to thermal energy
Thermal energy to mechanical energy
Mechanical energy to thermal energy
Bethanie is using the chemical formulas for various substances to classify them as either a compound or an element. Which of the following should Bethanie classify as a compound?
methane - CH4
carbon – C
silicon- Si
silver – Ag
Two friends decide to go to the park and watch a movie on a computer. The computer runs on battery power. What energy transformation is occurring from the battery to the light being given off by the computer?
Chemical, electrical, light
Chemical, electrical, sound
Electrical, light, sound
Electrical, chemical, light
Which sample is most likely a nonmetal?
1
2
3
4
Which of the following objects changes electrical energy
into thermal energy when used?
a
b
c
d
Which of the following energy transformations is most similar to an electric pencil sharpener?
a
b
c
d
