PS Review 1

A car traveling 127 m/s is 7895 meters away from Bojangles. How long will it take the car to reach Bojangles?

• a. 8022 s

• b. 64.14 s

• c. 62.16 s

• d. 0.0015 s

Calculate the weight of a 34 kg breakfast burrito!

• a. 333.2 Newtons

• b. 3.47 Newtons

• c. 0.28 Newtons

• d. 34.0 kg

Tags

NGSS.MS-PS2-2

Sally walks her dog 3.5 miles North and then 2.1 miles West. What is her displacement?

• a. 4.08 miles NW

• b. 5.6 miles NW

• c. 7.84 miles NW

• d. 2.7 miles NW

A sleeping dog hears the sound of a car outside and quickly gets up from resting on the floor. He runs barking toward the window at 0.87 m/s in 4 seconds. What is his acceleration?

• a. 4.597 m/s2

• b. 3.130 m/s2

• c. 0.2175 m/s2

• d. 3.480 m/s2

Tags

NGSS.MS-PS2-2

When calculating displacements, in which situation would you have to use the a^2+b^2=c^2 method?

• a. Traveling North

• b. Traveling North, then South

• c. Traveling East then West

• d. Traveling North then East

A 45 kg student runs down the hall at 0.34 m/s. What is his momentum?

• a. 132.3 kg x m/s

• b. 0.0075 kg x m/s

• c. 15.3 kg x m/s

• d. 44.6 kg x m/s

Tags

NGSS.HS-PS2-2

A 684 N construction worker walks 0.0014 m/s2 on a steel beam. What is the mass of the worker?

• a. 0.9576 kg

• b. 683.99 kg

• c. 488571.4 kg

• d. 68.80 kg

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Fred and Bob both push on the same box. They push on opposite sides of the box each with a force of 16 Newtons. What is the Net Force exerted on the box?

• a. 16 N

• b. 32 N

• c. 8 N

• d. 0 N

Tags

NGSS.MS-PS2-2

1. An object is in ____________if it changes position relative to a reference point.

• standing still

• motion

• not moving

• sleeping

What is the main difference between distance and displacement?

• Distance is a scalar quantity, while displacement is a vector quantity.

• Distance measures how much ground an object has covered, while displacement measures how far out of place an object is.

• Both A and B are correct.

• There is no significant difference; they can be used interchangeably.