Chapter 1: Describing Motion

Traveling one block west on Berry Avenue and one block north on 1st Street will get Abby to school. Where would her reference point be?

• tree on 3rd Drew Avenue

• school on 4th Street and Drew Avenue

• park on 2nd Street and Cook Avenue

• house on 1st Street and Cook Avenue

Displacement is the difference between the initial position and the _____ position of an object.

• postive

• resting

• motion

• final

Motion is the process of changing _____.

• reference

• dimension

• displacement

• position

A starting point that can be used to locate a place or thing is a _____ point.

• dimension

• reference

• position

• motion

Motion is a change in _____.

• speed

• velocity

• force

• position

Which of the following is the best object to use as a point of reference for describing the location of the parked car?

• the bird

• the streetlight

• the store

• the tree

Which of the following sets of directions is most specific?

• Rio City is across the river from here

• Rio City is about 25 km from here

• Rio City is 25 km southwest of here

• Rio City is two hills over from the hill southwest of here

The total distance traveled by an object divided by the total amount of time needed to travel equals the _____.

• average speed

• friction

• average acceleration

• net force

A soccer ball takes 20 s to roll 10 m. What is the average speed of the soccer ball?

• 200 m/s

• 5 m/s

• 2 m/s

• 0.5 m/s

Tags

NGSS.MS-PS3-1

What is the term for speed at any instant in time?

• instantaneous speed

• variable speed

• constant speed

• average speed