Exploring Equivalent Gear Ratios

If gear A rotates clockwise, what is the rotational direction of gear B?

• Clockwise

• Counterclockwise

• Does not rotate

• Rotates in both directions

Tags

CCSS.8.G.A.3

Given that gear B rotates counterclockwise, what is the rotational direction of gear C?

• Clockwise

• Counterclockwise

• Rotates in both directions

• Does not rotate

Tags

CCSS.8.G.A.3

If gear C rotates clockwise, what is the rotational direction of gear D?

• Rotates in both directions

• Clockwise

• Counterclockwise

• Does not rotate

Tags

CCSS.8.G.A.3

What is the diameter of gear B if the diameter of gear A is 5 inches and the gear ratio of A to B is 20:12?

• 4 inches

• 3 inches

• 5 inches

• 2 inches

Tags

CCSS.7.G.A.1

What is the gear ratio formula used to find the diameter of gear B?

• Number of teeth output / Number of teeth input

• Both A and B

• None of the above

• Diameter output / Diameter input

What is the diameter of gear C if the diameter of gear B is 3 inches and the gear ratio of B to C is 12:5?

• 1 inch

• 1.5 inches

• 1.25 inches

• 2 inches

Tags

CCSS.6.RP.A.3B

What is the gear ratio formula used to find the diameter of gear C?

• None of the above

• Diameter output / Diameter input

• Number of teeth output / Number of teeth input

• Both A and B

What is the diameter of gear D if the diameter of gear A is 5 inches and the gear ratio of A to D is 20:20?

• 6 inches

• 5 inches

• 4 inches

• 3 inches

Tags

CCSS.7.G.A.1

What is the gear ratio formula used to find the diameter of gear D?

• None of the above

• Diameter output / Diameter input

• Number of teeth output / Number of teeth input

• Both A and B

What should you do to verify the diameter of gear D?

• Use the gear ratio of B to D

• Use the gear ratio of C to D

• Use any gear ratio involving gear D

• All of the above