Physics Final

Which of the following are two factors that determine speed?

• distance and time

• motion and time

Which of the following explains the difference between speed and velocity?

Which of the following best represents acceleration as presented on a graph?

• distance change vs. time

• velocity change vs. time

Tags

NGSS.MS-PS3-1

Which of the following choices best represents force?

• a push or a pull acting without an object

• a push or a pull acting on an object

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the following always causes change in speed, direction, or both?

• balanced forces

• unbalanced forces

Tags

NGSS.MS-PS2-2

What is a force that opposes motion between two surfaces that are in contact?

• friction

• motion

Use the graph below to answer the following question. The graph shows distance traveled during a bicycle race. Because the upward slope on the graph is straight and objects do not normally travel at a constant rate, what does it MOST likely represent?

• average acceleration

• average speed

Tags

NGSS.MS-PS3-1

Look at Figure B. What force keeps the block in place?

• frictional force

• static friction

• no force applied

• static friction

Look at Figure C. The block is moving. What force acts against the movement of the block?

• static friction

• kinetic friction

• no force applied

• static friction

Tags

NGSS.MS-PS2-2

The reaction force of a chair you are sitting on

• is greater than your weight

• is equal to your weight