Physics Final Exam 20-21

Distance and direction of an object's change in position from a starting point

• displacement
• distance
• motion
• reference point

 Amy runs 2 miles south, then turns around and runs 3 miles north. What is displacement?

• 5 miles
• 1 mile 
• 2 miles south
• 1 mile north 

Which of the following may you do to a vector without changing it?

• Add a nonzero vector to a vector.
• Multiply a vector by a scalar other than 1.
• Rotate a vector through any angle other than 360 degrees.
• Move the vector without changing its orientation.

Sara walks from Point A to Point B. Which is true?

• Distance and displacement are EQUAL
• Distance is less than displacement

Find the distance Sara walks from A to B,  B to C then C to D?

• 11m
• 3m
• 5m

Michael walks in the following order: from Point A, to Point B, and finally to Point C. Which is true?

• Distance and displacement are EQUAL

• Distance is less than displacement

• Displacement is less than distance.

Juan walks in the following order: from Point A, to Point B, to Point C, and stops at Point D. Which is true?

• Distance and displacement are EQUAL

• Distance is less than displacement

• Displacement is less than distance.

Which force produces a change in motion?

• unbalanced force
• balanced force
• gravitational force
• frictional force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The picture of the position vs. time graph shows an object that is...

• accelerating/speeding up
• moving at a constant speed 
• not moving 
• accelerating/slowing down. 

Tags

NGSS.MS-PS3-1

What is the standard unit force is measured in?

• Newtons
• pounds
• grams
• meters