Lesson 2.1-2.2 Quiz

What is the net force on a box that is being pulled to the right with a force of 40 N and pulled to the left with a force of 30 N?

Mathematical Equivalence

ON

Tags

NGSS.MS-PS2-2

What name is given to the stretching force that occurs in a spring or a rope being pulled?

• Gravity

• Weight

• Tension

• Support

What two properties do forces have?

• magnitude and direction
• volume and weight
• color and shape
• speed and time

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the difference between a force and a net force?

Tags

NGSS.MS-PS2-2

How much tension is in a rope that holds up a 20-N bag of apples at rest?

• 25 N
• 15 N
• 10 N
• 20 N

What does ΣF = 0 mean?

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

What is the net force on an object at rest?

• Zero
• Positive
• Negative
• Non-zero

When you do pull-ups and you hang at rest, how much of your weight is supported by each arm?

Tags

NGSS.HS-PS2-1

The sketch shows a painter's staging in mechanical equilibrium. The person in the middle weighs 250 N, and the tensions in both ropes are 200 N. What is the weight of the staging?

Mathematical Equivalence

ON

Tags

NGSS.HS-PS2-4

A staging that weighs 300 N supports two painters, one 250 N and the other 300 N. The tension in the left rope is 400 N. What is the tension in the right rope?

Mathematical Equivalence

ON

Tags

NGSS.MS-PS2-2