Mechanical Advantage Part 2

How can you decrease the effort force needed to push a weight to the top of the ramp?

• cover the surface with carpet

• increase the length of the ramp

• increase the height of the ramp

Tags

NGSS.MS-PS2-2

Barbie sits on one end of a see-saw and Ken sits on the other. Barbie goes up in the air and Ken stays down on the ground. In order for Ken to make Barbie move down, he should

• push down on the board

• move away from the center

• move towards the center

Tags

NGSS.MS-PS2-2

the number of times a machine multiplies your effort force is known as...

• mechanical advantage

• simple machine

• power

the greater the mechanical advantage the less _______ force is required for the machine

• work

• power

• effort

Tags

NGSS.MS-ETS1-1

A 62 N box is lifted 12 m off the ground. How much work was done?

• 567 J

• 744 J

• 5.16 J

Tags

NGSS.MS-PS3-4

Calculate the amount of work done if you use a 100N force to push a 50 kg box 5 m across the kitchen floor. 

• 250 J

• 500 J

• 5,000 J

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

Jeff is a landscaping contractor and lifts a rock weighing 600 pounds by wedging a board under the rock. Jeff weighs 150 pounds and puts all of his weight on the lever. How much mechanical advantage did the lever provide to Jeff in lifting the rock?

• 0

• 2

• 4

• 8

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the unit used to measure Power?

• Newton

• Meters

• Joule

• Watt

To find the mechanical advantage of a pulley, what do you do?

• count the number of supporting ropes

• Count the number of times you pull the rope

• count the number of hooks

What is the MA of 3 fixed pulleys and 3 moveable pulleys?

• 1

• 2

• 3

• 6