Lessons 5–6 Solar cars

Multiple Choice

There are.................cars using sustainable energy now.

• more

• fewer

Multiple Choice

Solar energy to .............has been used for a long time.

• power cars

• heat buildings

Multiple Choice

Photovoltaic panels convert the sun’s energy into ................

• heat

• electrical energy

Multiple Choice

It ..............be possible to convert existing cars to solar energy.

• might

• won’t

Multiple Choice

Organic cells are .........effective than silicon cells.

• more

• less

Multiple Choice

It takes ............. to complete the Abu Dhabi Solar Challenge.

• a week

• less than a week

Multiple Choice

The people who race in the challenge ...........the cars.

• buy

• build