Energy Transformation/ 6th Grade Science Question Preview (ID: 45445)


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A hydroelectric dam uses the flow of water to turn a turbine. The turbine turns a magnet to produce electricity. What energy transformation occurs in a hydroelectric power plant?
a) mechanical to electrical
b) electrical to mechanical
c) chemical to electrical
d) chemical to mechanical

A hotplate is plugged in and the knob is turned to the on position. What is the energy ?
a) thermal energy to electrical energy
b) electrical energy to thermal energy
c) thermal energy to mechanical energy
d) mechanical energy to thermal energy

Which of these objects are the same energy transformation as an electrical pencil sharpener?
a) stopwatch
b) solar calculator
c) electric fan
d) a lamp

Which of the following objects changes electrical energy into thermal energy?
a) candle
b) toaster
c) sleeping bag
d) solar car

What is a disadvantage of nuclear energy?
a) It is abundant
b) It is healthy to aquatic life
c) It gives off radiation waste
d) It is inexpensive to produce

Which is the correct path of energy transformation of an electric lamp?
a) thermal to electrical to light
b) electrical to thermal to light
c) light to thermal to electrical
d) electrical to light to thermal

When a baseball player hits a ball, forces acting upon it will affect the ball's path. Which statement describes the forces best?
a) slow down, change direction, and then speed up until it falls to the ground
b) speed up, keep the same direction, then slowly fall to the ground
c) travel at the same speed until it hits the ground
d) travle in the same direction until it hits the ground

What are the disadvantages to solar energy?
a) Solar panels interrupt the ecosystem
b) Solar panels are a fossil fuel
c) The panels only produce energy when the sun is shining
d) Solar panels release carbon dioxide into the air

A runner runs for 2 hours and went 14 kilometers. What was her average speed?
a) 28 km/hr
b) 7 km/hr
c) 12 km/hr
d) 4 km/hr

Kinetic energy is the energy of ?
a) position
b) motion
c) heat
d) cold

Which energy resource would be most affected by the weather?
a) nuclear
b) natural gas
c) geothermal
d) wind

2 birds are flying at the same speed and weigh about the same. One bird is higher then the other. What is different in their energies?
a) Both birds have the same energy
b) The higher bird has more potential energy
c) The lower bird has more kinetic energy
d) Neither bird has energy

A city wants to add a clean energy source to help the electric company, which would be best?
a) diesel generator
b) nuclear power plant
c) solar panels on rooftops
d) hydroelectric dam

On a rollercoaster, the highest point would be considered to have the most
a) kinetic energy
b) potential energy
c) mechanical energy
d) thermal energy

A coaster car in the lowest position on a rollercoaster would have the most
a) kinetic energy
b) potential energy
c) mechanical energy
d) thermal energy

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