Understanding Motion and Graphs

What is acceleration?

• Acceleration is the speed of an object.

• Acceleration is the rate of change of velocity.

• Acceleration is the force applied to an object.

• Acceleration is the distance traveled over time.

How is acceleration calculated?

• a = (v_f * t) + v_i

• a = (v_f - v_i) / t

• a = v_i / t

• a = v_f + v_i

What units are used to measure acceleration?

• meters per second squared (m/s²)

• meters per second (m/s)

• feet per second squared (ft/s²)

• kilometers per hour (km/h)

What does a horizontal line on a distance-time graph indicate?

• The object is moving in a circular path.

• The object is moving at a constant speed.

• The object is at rest.

• The object is accelerating.

How can you determine speed from a distance-time graph?

• Speed is calculated by averaging the distance over time.

• Speed is found by measuring the time taken for a journey.

• Speed can be determined by the area under the graph.

• Speed is determined by calculating the slope of the distance-time graph.

What does a steeper slope on a distance-time graph represent?

• It represents a higher speed.

• It represents a constant speed.

• It shows no movement at all.

• It indicates a lower speed.

What does a negative slope on a distance-time graph indicate?

• The object is moving at a constant speed forward.

• The object is accelerating away from the starting point.

• The object is moving backwards or returning to a previous position.

• The object is stationary and not moving at all.

How is velocity different from speed?

• Velocity is always greater than speed.

• Velocity measures distance traveled, while speed measures time taken.

• Velocity differs from speed in that it includes direction, while speed does not.

• Speed is a vector quantity, while velocity is a scalar.

What does a flat line on a velocity-time graph represent?

• Decreasing velocity

• Increasing velocity

• Zero velocity

• Constant velocity

How can you find acceleration from a velocity-time graph?

• Acceleration can be calculated by finding the total distance traveled.

• Acceleration is found by measuring the area under the curve.

• Acceleration is found by calculating the slope of the velocity-time graph.

• Acceleration is determined by the y-intercept of the graph.