SP2.c Forces & Vectors IA1 Remediation

SP2.c

Name the missing force...

• weight force
• normal force
• frictional force
• tension force

Tags

NGSS.MS-PS2-2

SP2.c

Which of the following shows the direction of the friction force?

• A
• B
• C
• D

SP2.c

What is the weight of a 25 kg statue on earth?

• 25 N

• 25 lbs

• 245 N

• 245 lbs

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

SP2.c

A weightlifter holds a 175 kg bar still. What force is the weightlifter exerting to keep the bar from falling?

• 0 N

• 17.9 N

• 175 N

• 1715 N

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

SP2.c

If the boy in the hat pulls with a force of 28 N, and the other boy pushes with a force of 12 N, what is the NET Force?

• 40 N to the left
• 40 N to the right

• 16 N to the left

• 16 N to the right

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

SP1.d

You come to a log in the jungle. You jump over it by exerting 60 Newtons of force at a 38° angle above the horizontal. How much horizontal force did you exert?

• 36.9 N

• 47.3 N

• 46.8 N

• 1.58 N

Tags

NGSS.HS-PS2-1

The tightrope makes a 20° angle with the horizontal. Half of the person's 600 N weight creates the vertical force (Fy = 300N) on the tightrope. What is the tension in the tightrope?

• 282 N

• 103 N

• 319 N

• 877 N

Answer explanation

You are looking for R, the hypotenuse. You are given Θ and the opposite side.

Use Opp = hyp sin Θ and solve for hyp!

Tags

NGSS.HS-PS2-1

Determine the magnitude of the x-component of the 1000-N tension force at a 60° angle from the horizontal.

• 952.41 N

• 304.81 N

• 866.03 N

• 500 N

Tags

NGSS.HS-PS2-1

A hippo has an average weight of 14,000 N. What is his mass in kg?

• about 1400 kg

• about 140,000 kg

• 14, 000 kg

• about 140 kg

Answer explanation

To calculate mass from weight, use the weight equation: Fw = mg; weight is negative because it is downward and g = -9.8m/s² so mass = weight / 9.8 or to estimate, mass = weight / 10

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

This monkey has a weight of 100 N. How much tension is in each of his arms?

• 50 N

• 100 N

• 10 N

• 200 N

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2