Mechanical Systems ELO 2

What is the standard unit force is measured in?

• Newtons
• pounds
• grams
• meters

How do we calculate work?

• W = F * d
• w = f * D
• W = F * D
• w = f * d

Tags

NGSS.MS-PS3-5

How much work is being done with 200 N of force over 426 meters?

• 85,200 J
• 45,620 J
• 90,480 J
• 62,329 J

The SI unit of work is?

• Joules
• Watts
• Newtons
• meters

If 150 Joules of work is needed to move a box 10 meters, what force was used? 

• 1500 N
• 15 N
• 1.5 N
• 150 N

A worker climbs a ladder and does 8 J of work on a 2 N object. What is the distance they lift the object?

• 18 m

• 4 m

• 10 m

• 6 m

Tags

NGSS.MS-PS3-2

Two factors that determine work are

• size of the force, and distance
• size of the force, and type of force
• mass, and distance

Fred kicks a ball with a force of 20N to George, who is 5M away. How much work was done to the ball?

• 25J
• 100J
• 4J
• 75J

Tags

NGSS.MS-PS3-5

A ramp with a mechanical advantage of 8 lifts objects to a height of 1.5 meters. How long is the ramp?

• 2

• 4

• 6

• 12

A child makes a ramp to push his toy dump truck up to his sandbox. If he uses 5 newtons of force to push the 12-newton truck up the ramp, what is the mechanical advantage of his ramp?

• 1.2

• 2.4

• 3.6

• 4.8

Tags

NGSS.MS-PS2-2