MTT Gears

BIG output gears are used for

• More turning power (torque)
• More rotational speed

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NGSS.MS-PS2-1

LITTLE driven gears are used for

• More turning power (torque)
• More rotational speed

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Engineers often pair little driver gears with big driven gears to 

• Increase speed
• Increase torque

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NGSS.MS-PS2-1

The larger the radius, the ______ force a turning wheel has

• MORE
• LESS

Gears spin in 

• Opposite direction
• Same direction

What does a 1:6 gear ratio mean?

• It means the small gear has to turn 6 times to turn the big gear once.
• It means the big gear has to turn 6 times to turn the small gear once. 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the gear ratio of a gear train with a big gear of 48 teeth and a little gear of 12 teeth?

• 1:4
• 1:3

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NGSS.MS-PS2-2

What do we call the gear connected to the input power source, such as a motor?

• Driven Gear

• Bigger Gear

• Smaller Gear

• Driving Gear

Tags

NGSS.MS-PS2-1

What do we call the gear connected to the output, such as a wheel or mechanism in a system?

• Driving Gear

• Driven Gear

• Bigger Gear

• Smaller Gear

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

When you have a system with a driving gear that is _______ than the driven gear you will increase torque and decrease speed.

• smaller

• bigger

• same size

• thicker

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2