Unit 3 force, energy, circuits

Which form of energy will be demonstrated when the person is pushing the wheelchair?

• mechanical
• electrical
• light
• thermal 

Which forms of energy from the Sun reach the Earth?

• light and mechanical
• thermal and electrical
• light and thermal
• mechanical and thermal

All of the following are examples of thermal energy EXCEPT the energy produced by......

• rubbing your hands together
• a hot plate boiling water
• plugging in a portable radio

Which of the following is the best example of a student using electrical energy?

• turning on a light in the classroom
• using sissors
• writing in a journal with a pencil

Which of the following items will best allow energy to flow through an electric circuit?

• metal antenna
• flexible straw
• wooden stick

Which household appliance converts electrical energy to heat energy?

• hair dryer
• telephone
• calculator

Which of the following BEST describes how energy changes water in the beaker into steam?

• air absorbs heat 
• steam releases heat from the hot plate
• Water is heated by the hot plate

What kind of energy drives this system?

• sound
• electrical
• light
• heat

What kind of energy is produced from this candle?

• sounds and heat
• light
• heat
• heat and light

Which type of energy warms the oceans?

• electrical
• light
• sound
• solar