Chapter 1 Post Assessment '24

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

• positive
• resting
• motion
• final

Motion is the process of changing _____.

• reference
• dimension
• displacement
• 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 store
• the tree

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

To describe velocity you need to know ____.

• speed and direction
• speed and time
• direction and acceleration
• speed and acceleration

When you graph the motion of an object, you put ____ on the horizontal axis and ____ on the vertical axis.

• speed, time
• distance, time
• time, speed
• time, distance

The distance traveled divided by the time taken to travel the distance is ____.

• velocity
• mass
• momentum
• speed

You travel 200 km in 2 h. Your ____ speed is 100 km/h.

• constant
• average
• instantaneous
• initial

You hear that a storm is moving 15 km/h NORTH. You have been given the storm's ____.

• constant speed
• acceleration
• velocity
• average speed

Which of the following statements best describes the motion of the object?

• The object moved at a constant speed.
• The object accelerated at a constant rate.
• The average speed of the object was less than 1 m/s.
• The instantaneous speed of the object was greater than 1 m/s.