Electric racer

What is the first step in building the basic electric racer?

• Attach the battery holder to the frame.

• Wrap a small rubber band around the pulleys.

• Place two AA batteries into the battery holder.

• Cut four 12cm (4 in) dowels.

Which parts are required to build the electric racer?

• Pulleys

• Gears

• motor

• all of the above

What is used to hold parts in place?

• Reamer

• Multi-Cutter

• #10 Screw and nut

• Wrench

What should you do first if the motor does not run after placing the batteries?

• Check if the wires connected to the motor terminals or metal ends.

• Remove the rubber bands.

• Switch the wires on the motor terminals.

• Replace the batteries.

What is the purpose of wrapping large rubber bands around the wheels?

• To give the racer traction or grip.

• To connect the wheels to the frame.

• To add color to the racer.

• To keep the wheels from falling off.

How many Volts of power are required per racer if one AA battery has 1.5 Volts of power?

• three volts

• one and a half volts

• Four volts

• Two and a half volts

What happens when you reverse the polarity by switching the wires on the motor terminals or metal ends?

• The motor runs faster.

• The motor stops working.

• The direction of the motor's rotation changes.

• Nothing happens.

What is the recommended age level for building the electric racer?

• 12 and above

• 10 and above

• 14 and above

• 16 and above

What is the main purpose of Designing and building your own electric car?

• To compete in races.

• To teach physics.

• To build electric racers only.

• To encourage experimentation and design.

How many AA batteries are required per racer?

• One

• Three

• Four

• Two