Energy & Energy Transfers

Energy & Energy Transfers

Multiple Choice

What is energy?

• ability to do work

• applying force

• having length

Multiple Choice

How many types of energy are there mainly?

• 3

• 2

Multiple Choice

Kinetic energy is

• due to motion

• due to position

Multiple Choice

potential energy is

• due to motion

• due to position

Multiple Choice

Which of the following has chemical potential energy?

Multiple Choice

Which of the following has elastic potential energy?

Multiple Choice

Which of the following has gravitaitonal potential energy?

Multiple Choice

Which of the following has elastic potential energy?

Fill in the Blank

Sound is produced due to

Multiple Choice

Electrons move in a wire due to

• sound energy

• electrical energy

Multiple Choice

What is the input energy in the device?

• chemical potential energy

• electrical energy

• light energy

• heat energy

Multiple Choice

What is the useful output energy in the device?

• chemical potential energy

• electrical energy

• light energy

• heat energy

Multiple Choice

What is the wasted energy in the device?

• chemical potential energy

• electrical energy

• light energy

• heat energy

Open Ended

Observe the energy diagrams and the transducer involved

Multiple Choice

What is the transducer in a wind up car?

• spring system

• lights

• body of the toy car

Multiple Choice

What is the energy input and output in a wind up toy car?

• elastic, kinetic

• kinetic, elastic

• elastic, light

• chemical, kinetic

Multiple Choice

What is the energy transfer involved in a boiler

• chemical PE to heat energy and KE

• heat energy to chemical potential energy

• KE to chemical PE

Multiple Choice

What is the energy transfer involved in a spinning electromagnet?

• electrical to kinetic

• magnetic to electrical

• kinetic to electrical

Multiple Choice

Where does the pendulum have potential energy

• at the edge of the swing

• middle of the swing

Multiple Choice

Where does the pendulum have kinetic energy

• at the edge of the swing

• middle of the swing

Multiple Choice

Which of the following shows the correct order of the energy transformations that occur when green plants produce their food from the Sun’s energy?

• chemical → thermal
• light → chemical
• thermal → light
• chemical → electrical

Multiple Choice

Some students observing a classroom device being used, noticed the below energy transformations. 
Electrical → Mechanical → Sound
Which device were the students most likely observing?

• A triple beam balance measuring an object’s mass.
• A pencil sharpener plugged into a wall outlet.
• A projector displaying a diagram on the screen.
• A working flashlight used to light up a dark corner.

Multiple Choice

Identify the energy transfer

• potential to chemical

• electrical to kinetic

• mechanical to sound

• chemical to thermal