Wheels/axles, gears, pulleys

BIG gears are used for

• More turning power (torque)
• More rotational speed

LITTLE gears are used for

• More turning power (torque)
• More rotational speed

All gears in between the driving gear and the driven gear that only transmit power are known as ______

• Idler Gears

• Trained Gears

• Driven Gears

• Driving Gears

Tags

NGSS.MS-PS2-1

The __________ Gear causes motion

• Driven

• Driving

• Smallest

• Biggest

True or False: Two meshed gears always rotate in opposite directions

• True

• False

To INCREASE speed of rotation, you can ____________________.

• add more gears
• change from a LARGE gear to a SMALL gear
• turn the handle less times
• change from a SMALL gear to a LARGE gear

Chain drive gears turn in the __________ direction.

• Opposite
• Same
• Oscilating
• Linear

If I turn the large gear once, how many times does the small gear turn?

• 1

• 2

• 3

• 4

Where might you find gears?

• tires
• clock
• chopsticks
• swimming pool

What are 4 things that have gears?

• clock, cars,  bikes, watches
• fish, dogs, pencils, people