Grade 8 Inclined Plane

The mechanical advantage of this inclined plane is...(MA=Resistance Force/Effort Force)

• 2.4

• 3.4

• 4.4

Answer explanation

The correct mechanical advantage is calculated by dividing the resistance force by the effort force, resulting in 2.4, which matches the given correct answer choice.

The ideal mechanical advantage equals the length of the effort arm divided by the length of the resistance arm of a lever.

What is the ideal mechanical advantage of this inclined plane?

• 4.5

• 22

• 14

• 0.22

Answer explanation

The correct choice is 4.5 because the ideal mechanical advantage of an inclined plane is calculated by dividing the length of the effort arm by the length of the resistance arm.

The ideal mechanical advantage equals the length of the effort arm divided by the length of the resistance arm of a lever.

What is the ideal mechanical advantage of this inclined plane?

• 1

• 3

• 6

• 8

Answer explanation

The ideal mechanical advantage of an inclined plane is calculated by dividing the length of the slope by the vertical rise, resulting in an ideal mechanical advantage of 3.

The mechanical advantage of this inclined plane is...(MA=Resistance Force/Effort Force)

• 2.4

• 3.4

• 4.4

Answer explanation

The correct mechanical advantage of the inclined plane is 2.4, calculated by dividing the resistance force by the effort force (MA=Resistance Force/Effort Force).

If the effort force applied on an inclined plane is half of the resistance force, what is the mechanical advantage of the inclined plane?

• 0.5

• 1

• 2

• 4

Answer explanation

The mechanical advantage of an inclined plane is calculated as the ratio of resistance force to effort force. Since the effort force is half of the resistance force, the mechanical advantage is 2 (Resistance Force / Effort Force = 2). Therefore, the correct answer is 2.

If the length of the inclined plane is 5 meters and the height is 1 meter, what is the ideal mechanical advantage of the inclined plane?

• 1

• 5

• 0.2

• 2.5

Answer explanation

The ideal mechanical advantage of an inclined plane is calculated by dividing the length by the height, so 5 meters / 1 meter = 5, making the correct answer 5.

Given an inclined plane with a length of 10 meters and a height of 2 meters, calculate the ideal mechanical advantage.

• 2

• 5

• 10

• 20

Answer explanation

The ideal mechanical advantage of an inclined plane is calculated by dividing the length by the height, so 10/2 = 5. Therefore, the correct answer is 5.

If the mechanical advantage of an inclined plane is 4, and the effort force is 50N, what is the resistance force?

• 12.5N

• 200N

• 100N

• 150N

Answer explanation

The resistance force is calculated by dividing the effort force by the mechanical advantage, so 50N / 4 = 200N. Therefore, the correct answer is 200N.

What is the mechanical advantage of an inclined plane with a length of 8 meters and a height of 2 meters?

• 2

• 4

• 6

• 8

Answer explanation

The mechanical advantage of an inclined plane is calculated by dividing the length by the height, so 8 meters ÷ 2 meters = 4. Therefore, the correct answer is 4.

What is the ideal mechanical advantage of an inclined plane with a length of 12 meters and a height of 3 meters?

• 2

• 4

• 6

• 8

Answer explanation

The ideal mechanical advantage of an inclined plane is calculated by dividing the length by the height, so 12 meters / 3 meters = 4. Therefore, the correct answer is 4.