Physical Science Semester 2

If you were standing under the tree, which object would appear to be moving?

• the tree
• the airplane
• the boy
• the building

A passenger in the rear seat of a car moving at a steady speed is at rest relative to

• the side of the road
• a pedestrian on the corner ahead
• the front seat of the car
• the wheels of the car

A person walks 1 mile every day for exercise. She leaves her front porch and returning to her front porch. What is the total displacement for her walk?

• 1 mile
• 0 miles
• 25 minutes
• none of the above

A ball is rolled uphill a distance of 5 meters before it begins to roll back downhill 9 meters. What is the ball's displacement?

• 4 meters
• 9 meters
• 14 meters
• 45 meters

Speed is the ratio of the distance an object moves to

• the amount of time needed to travel the distance
• the direction the object moves
• the displacement of the object
• the motion of the object

Tags

NGSS.MS-PS3-1

Instantaneous speed is measured

• at the starting point
• when the object reaches its destination
• at a particular instant
• over the duration of the trip

The slope of a line on a distance-time graph is

• distance
• time
• speed
• displacement

A horizontal line on a distance-time graph means the object is

• moving at a constant speed
• moving faster
• slowing down
• at rest

The rate at which velocity changes is called

• speed
• vectors
• acceleration
• motion

Objects in free fall near the surface of the Earth experience

• constant speed
• constant velocity
• constant acceleration
• constant distance

Tags

NGSS.MS-PS2-1