Understanding Gears (Part 1)

What are gears typically made of?

• Wood and plastic

• Plastic and metal

• Metal and rubber

• Rubber and wood

What do we call a system where more than two gears are joined together?

• Gear pair

• Gear chain

• Gear set

• Gear train

What happens when two gears of the same size mesh together?

• One gear moves faster

• One gear moves slower

• Both gears move at the same speed

• Both gears stop moving

If a larger gear turns a smaller gear, what happens to the speed and force of the smaller gear?

• Increases speed, decreases force

• Decreases speed, increases force

• Decreases speed, decreases force

• Increases speed, increases force

In a bicycle, what is the driver gear attached to?

• The chain

• The handlebars

• The pedals

• The rear wheel

What is the term used when the driver gear turns a smaller gear in a bicycle?

• Speeding up

• Speeding down

• Gearing up

• Gearing down

What is the effect of gearing down in a bicycle?

• Increases speed, decreases force

• Decreases speed, decreases force

• Increases speed, increases force

• Decreases speed, increases force

Why do you need to use the lowest gear when starting a car or bike?

• To increase force

• To increase speed

• To decrease force

• To decrease speed

What type of gear arrangement is used to climb up a hill on a bicycle?

• Any gear

• Highest gear

• Lowest gear

• Middle gear

What factors differentiate different types of gears?

• Size and color

• Speed and force

• Material and weight

• Teeth arrangement and axle placement