Forces and Motion

What is the average speed of the Worm's Journey?

• 2.25 meters/minute

• 2 meters/minute

• 1 meter/minute

Tags

NGSS.MS-PS3-1

• 400 m/min

• 0.0025 m/min

• 3600 mi/hr

• 40 m/s

Which graph matches the scenario?

A cheetah stalks his prey, moving slowly and stopping occasionally.

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The motion graph above represents an object's movement over time. Based on the graph, which of the following statements correctly describe the motion of the object? (Select all that apply.)

• The object starts from rest and moves at a constant speed for the first 20 seconds.

• Between 20 and 40 seconds, the object remains stationary.

• The object moves at the fastest speed between 40 and 60 seconds.

• The object slows down after 60 seconds and comes to a stop at 100 seconds.

• The object moves backward after 60 seconds, returning to its starting position.

Based on the information in image, which of the following statements are true?

• The forces were balanced: the net force is the sum of the two forces.

• The forces were unbalanced: the net force is the sum of the two forces.

• The forces were balanced: the net force is the difference of the two forces

• The forces were unbalanced: the net force is the difference of the two forces.

Tags

NGSS.MS-PS2-2

What is the net force on this box?

• 30 N left
• 25 N right
• 5 N left
• 55 N right

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Who will win?

• The blue team with a net force of 300 N.

• The green team with a net force of 300 N.

• The green team with a net force of 200 N.

• The blue team with a net force of 300 N.

Tags

NGSS.MS-PS2-2

Carts of different masses are pulled along a flat surface. The table shows some variables for each cart.

Which two carts experience the same net force?

• Carts 1 and 2

• Carts 1 and 3

• Carts 2 and 3

• Carts 2 and 4

Tags

NGSS.MS-PS2-2

If a 2kg bird is pushed by the wind with a force of 2N, how fast does the bird accelerate?

• 1 m

• 2 m/s²

• 4m/s²

• 1 m/s²

Tags

NGSS.MS-PS2-2

How much force is needed to accelerate a 3kg skateboard at 5m/s^2.

• 8N

• 1.6N

• 0.6N

• 15N

Tags

NGSS.MS-PS2-2