1.4 notes check

A motion graph is a series of points indicating an object's ________ that are marked at one second intervals.

• position

• speed

• mass

• temperature

Look at the diagram showing two motion graphs, one labeled 'Fast!' and one labeled 'Slow!'. Which motion graph represents a faster moving object?

• The one with points farther apart (Fast!)

• The one with points closer together (Slow!)

According to the definition of a motion graph, what does each point on the graph represent?

• Each point represents the object's position at one second intervals.

• Each point represents the object's speed at random times.

• Each point represents the object's direction of motion.

• Each point represents the object's acceleration at one second intervals.

What is a motion graph? Fill in the blank: A motion graph is a series of points indicating an object's position that are marked at ________ intervals.

• one second

• random

• hourly

• daily

Look at the diagram labeled 'Constant Speed.' What does the equal spacing of the points represent?

• The object is speeding up

• The object is moving at a constant speed

• The object is slowing down

• The object is not moving

Look at the diagram labeled 'Accelerating.' What does the decreasing spacing between the points represent?

• The object is moving at a constant speed

• The object is slowing down

• The object is speeding up

• The object is not moving

Look at the diagram labeled 'Lots of Acceleration.' What does the rapidly decreasing spacing between the points represent?

• The object is moving at a constant speed

• The object is speeding up quickly

• The object is slowing down

• The object is not moving

The motion diagrams of a cart moving in a straight line to the right (i.e., positive direction) for three trials are shown above. Which of the following statements correctly indicates the sign on the acceleration of the cart in each trial?

• A. Positive Zero Negative

• B. Positive Positive Positive

• C. Negative Positive Negative

• D. Negative Zero Positive

What is the general equation of a straight line shown in the graph?

• y = mx + b

• y = bx + m

• y = m + bx

• y = x + b

In the equation y = mx + b, what does the 'b' represent?

• Slope

• Intercept

• Variable

• Run