Energy transformation

When a car burns gasoline it creates hot air to move the pistons in the engine, which causes the car to move. What energy transformation occur from the fuel to the movement of a car?

• thermal energy to mechanical energy

• thermal energy to chemical energy to mechanical energy

• chemical energy to thermal energy to mechanical energy

• chemical energy to electrical energy

Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?

• Chemical to light
• Electrical to chemical
• Electrical to light
• Chemical to electrical

According to the Law of Conservation of Energy, energy cannot be _________ or ____________. 

• destroyed, destroyed
• created, saved
• created, destroyed
• lost, found

Energy transformations occur when...

• energy is created through conduction
• energy changes from one form to another
• two forces slide together that are touching
• a chemical reaction takes place

Which of the following is a disadvantage of using solar energy?

• releases carbon dioxide into the atmosphere

• reduces the need for electricity from fossil fuels

• produces energy only when the sun is shining

• is an unclean source of energy

What energy conversions take place when you vigorously rub your hands together?

• friction => heat

• chemical => thermal

• mechanical => thermal

• kinetic => chemical

Which of the following is the correct chain of energy that takes place when a flashlight is turned on?

• chemical => electrical => light

• mechanical => electrical => light

• nuclear => chemical => light

• thermal => chemical => mechanical

Which type of energy propels a baseball after it has been struck by a bat?

• chemical

• thermal

• mechanical

• nuclear

What is the correct energy chain from the sun to grass to cow?

• light and thermal => chemical => chemical

• light => heat => mechanical => chemical

• light => thermal => mechanical

• nuclear => chemical => potential

The sun gives of large amounts of light and ___________ energies?

• nuclear

• mechanical

• chemical

• thermal