Energy, Forces, and Motion Review

Which of the following is NOT a difference between speed and velocity?

• Velocity includes the direction of the object while speed does not.

• Velocity = displacement/time, Speed = distance/time

• Speed includes the direction of the object while velocity does not.

How far away and in what direction an object is from its starting position is called the object's

• distance

• displacement

• speed

• velocity

The length of the path an object travels between two points is the object's

• distance

• displacement

• speed

• velocity

Joey rides his bike from Tree A to House B and stopped at Tree C. What distance did he travel in total for his bike ride?

• 5 m

• 7 m

• 12 m

• 20 m

Joey rides his bike from Tree A to House B and stopped at Tree C. Tree C is northeast of Tree A. What was Joey's total displacement?

• 5 m NE

• 7 m NE

• 5 m

• 7 m

It takes a marble 2 seconds to roll a distance of 6 meters across the floor. What is the marble's average speed?

• 0.33 m/s

• 2 m/s

• 3 m/s

• 12 m/s

Describe the motion of an object given by this Position-time graph.

• speeding up

• slowing down

• constant speed

• not moving

Tags

NGSS.MS-PS3-1

Describe the motion of an object given by this Position-time graph.

• not moving then moving backward

• moving forward then not moving

• moving backward then not moving

• moving forward then backward

Tags

NGSS.MS-PS3-1

Given the Position-time graph below, which way is the object moving at 3 seconds?

• forward

• backward

• not moving

Tags

NGSS.MS-PS3-1

For the graph of "A student is walking home from school and stops to talk to a friend. While talking, he realizes that he forgot his bike at school and goes back to get it. He then rides his bike home", line 1 matches which motion?

• walking home from school

• stops to talk to a friend

• goes back to school

• rides bike home

• None of the answers