Gears and Levers

Which statement is true?

• The driver is moving faster than the follower.

• The driver is moving slower than the follower.

• The driver is moving at the same speed as the follower.

• The driver is moving in the same direction as the follower.

Tags

NGSS.MS-PS3-1

Look at the purple chain, which statement is true?

• The pedals will be moving slowly while the wheels move quickly.

• The pedals will be moving quickly while the wheels move quickly.

• The pedals will be moving slowly while the wheels move slowly.

• The pedals and the wheels will be moving in opposite directions.

Tags

NGSS.MS-PS2-1

Which statement is true?

• The wheels will get jammed and not move.

• The wheels will move in the same direction.

• The wheels will move at the same speed.

• The wheels will move in the opposite direction.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

True or False: Gears next to each other turn in the same direction.

• True

• False

Which statement is true?

• The wheels will turn at the same speed.

• The wheels will turn in the same direction.

• The wheels will turn in the opposite direction.

• The wheels will get jammed and not move.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What can gears change about the motion (movement) of an object? (tick 3)

• speed

• force

• colour

• direction

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What do gears have to help them work?

• teeth

• eyes

• ears

• feet

Tags

NGSS.MS-PS2-1

Which of the following statements about gears is true?

• Gears with more teeth rotate faster than those with fewer teeth.

• Gears with fewer teeth rotate faster than those with more teeth.

• Gears always rotate in the same direction.

• Gears do not affect the speed of rotation.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the primary function of a lever in a simple machine?

• To increase the speed of an object.

• To change the direction of a force.

• To decrease the weight of an object.

• To increase the distance an object moves.

In a gear system, if the driving gear has 20 teeth and the driven gear has 40 teeth, what is the gear ratio?

• 1:2

• 2:1

• 1:1

• 4:1