8th grade mid-term

What is position?

• A place where someone or something is located or has been put

• A type of fruit

• A mathematical operation

• A color

What is a reference point?

• A fixed point used to determine the position of an object

• A moving object used to measure speed

• A tool for measuring distance

• A unit of time measurement

Motion is the change in position of an object over time.

• True

• False

What is the difference between distance and displacement?

Why is a reference point important in describing motion?

• It provides a standard for comparison.

• It helps in measuring time.

• It determines the speed of an object.

• It defines the mass of an object.

Which of the following is an example of a reference point in everyday life?

• A clock to tell time

• A thermometer to measure temperature

• A map to find directions

• All of the above

What is speed?

Tags

NGSS.MS-PS3-1

How is average speed calculated?

• By dividing total distance by total time

• By multiplying total distance by total time

• By adding total distance and total time

• By subtracting total time from total distance

What is instantaneous speed?

• The speed of an object at a specific moment in time

• The average speed over a period of time

• The maximum speed an object can reach

• The speed of an object in a vacuum

What is velocity?

Tags

NGSS.MS-PS3-1