Inclined Planes

Which simple machine increases the distance over which a load travels and reduces the needed force?

• wheel and axle

• wedge

• pulley

• inclined plane

Tags

NGSS.MS-PS2-2

A student is helping his neighbor move a new dishwasher into their house. The house has three steps on the front porch that cause the porch to be 2 meters above the ground. Which method requires the least amount of force to get the dishwasher from the ground to the porch?

• Lift the dishwasher up one step at a time with a partner, and rest one minute between steps.

• Place an inclined plane that is 10 meters long over the stairs, and roll the dishwasher up the inclined plane with a partner.

• Place an inclined plane that is 5 meters long over the stairs, and roll the dishwasher up the inclined plane with a partner.

• Use a fixed pulley attached to the roof of the porch to lift the dishwasher with a partner.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

• A

• B

• C

• They all require the same amount of force.

Tags

NGSS.MS-PS2-2

Students want to raise a large crate from the ground to a deck several feet above the ground. They know it will be easier to move the crate along an inclined plane because the inclined plane will —

• reduce the work needed to raise the crate.

• increase the force applied to the crate.

• increase the work done on the crate.

• reduce the force necessary to raise the crate.

Tags

NGSS.MS-ETS1-1

Which of the following statements is true about inclined planes?

• They decrease the amount of work done

• They change the direction of the applied force

• They allow for the application of a greater force over a shorter distance

• They allow for the application of a smaller force over a longer distance

How does an inclined plane make work easier?

• By increasing the distance over which a force is applied

• By decreasing the distance over which a force is applied

• By increasing the force required

• By decreasing the force required

What is the effect of increasing the length of an inclined plane while keeping the height constant?

• It decreases the mechanical advantage

• It increases the mechanical advantage

• It has no effect on the mechanical advantage

• It decreases the force required to move an object

What is the main advantage of using an inclined plane?

• It reduces the amount of work needed

• It increases the amount of work needed

• It changes the direction of the force

• It allows for the application of a smaller force over a longer distance

Which of the following is a benefit of using an inclined plane in construction?

• It requires more energy to move objects

• It allows for the lifting of heavier loads with less force

• It decreases the distance over which objects are moved

• It increases the speed of moving objects

Tags

NGSS.MS-PS2-2

Which of the following is NOT a benefit of using an inclined plane?

• It reduces the force needed to lift an object

• It increases the distance over which the force is applied

• It changes the direction of the applied force

• It allows for the movement of heavy objects with less effort