RC 2 7th grade science

What does Newton's First Law of Motion state?

• An object in motion stays in motion unless acted upon by an external force.

• Force equals mass times acceleration.

• For every action, there is an equal and opposite reaction.

• Energy cannot be created or destroyed.

What is the formula for calculating average speed?

• Distance divided by time

• Mass times acceleration

• Force divided by area

• Energy times time

Which of the following is an example of thermal energy transfer?

• A hot cup warming your hands

• A ball rolling down a hill

• A car accelerating on a highway

• A magnet attracting iron filings

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

What does a distance-time graph show?

• The speed of an object over time

• The temperature change over time

• The energy consumption over time

• The force applied over time

What was Juanita’s average speed, in km/h, during the time represented in the graph?

• 45 km/h

• 60 km/h

• 90 km/h

• 120 km/h

Tags

NGSS.MS-PS3-1

What was Juanita’s average speed during the first 4 hours of the trip?

• 50 km/h

• 45 km/h

• 70 km/h

• 80 km/h

Tags

NGSS.MS-PS3-1

What was Juanita’s average speed during the last 3 hours of the trip?

• 40 km/h

• 60 km/h

• 80 km/h

• 100 km/h

Tags

NGSS.MS-PS3-1

What was Juanita’s average speed during the 3 h to 5 h time interval?

• 25 km/h

• 40 km/h

• 50 km/h

• 60 km/h

Tags

NGSS.MS-PS3-1

What was Juanita’s average speed during the 3 h to 5 h time interval?

• 25 km/h

• 40 km/h

• 50 km/h

• 60 km/h

Tags

NGSS.MS-PS3-1

What is the formula for calculating average speed?

• Average speed = total distance × total time

• Average speed = total distance / total time

• Average speed = total time / total distance

• Average speed = total distance + total time