Motion

What is a reference point?

• A. The final position of an object
  

• B. The starting point used to describe the location of an object
  

• C. A measurement of the distance traveled by an object
  

• D. The speed of an object over time

Which of the following descriptions uses a reference point?

• The table is 10 meters from the tree.

• The statue is 10 meters from the table.

• The car is moving at 30 km/h

• The airplane is at 30,000 feet altitude

How would you describe the position of a picnic table using the statue as a reference point?

• The table is next to the slide.

• The table is near the entrance.

• The table is 10 meters from the statue, toward the slide.

• The table is in the center of the park.

If you change the reference point, what happens to the description of an object's position?

• The object’s position changes.

• The object moves to a new location.

• The description of the position changes, but the object’s location remains the same.

• The object’s distance from the reference point increases.

In which of the following scenarios is the man in motion relative to the buoy?

• The man is standing still in the boat.

• The buoy and the man are moving together.

• The man’s distance from the buoy changes over time.

• The man and buoy are in the same location.

What is displacement?

• The total distance an object travels.

• The difference between the initial position and the final position of an object.

• The speed of an object over a period of time.

• The rate at which an object changes direction.

What does the steepness of a line on a distance-time graph represent?

• The direction of motion

• The total distance traveled

• The average speed of the object

• The speed of the object, with steeper lines indicating faster speeds

On a distance-time graph, what does a straight, sloped line indicate?

• A changing speed

• Constant speed

• Acceleration

• Deceleration

How would you calculate the average speed of an object?

• Total time divided by total distance

• Final position minus initial position

• Total distance divided by total time

• The steepness of a distance-time graph

If an object travels 120 meters in 60 seconds, what is its average speed?

• 2 meters per second

• 0.5 meters per second

• 120 meters per second

• 60 meters per second