Motion and Graphs in Physics

Mr. Graham demonstrates real-world physics concepts using a motion detector and ramp. He explains acceleration, including its relation to velocity changes, and discusses the creation and analysis of position vs. time and velocity vs. time graphs. The video also covers the impact of coordinate systems on motion description and explores free fall motion, highlighting the calculation of gravitational acceleration.

What is considered acceleration in physics?

• Only speeding up

• Any change in velocity

• Only moving in a straight line

• Only slowing down

What shape does a position versus time graph take for uniformly accelerated motion?

• Exponential

• Linear

• Parabolic

• Circular

How does the choice of coordinate system affect the description of motion?

• It changes the actual motion

• It makes the motion unpredictable

• It affects the accuracy of measurements

• It does not affect the description if used consistently

What is the expected shape of a velocity versus time graph for uniformly accelerated motion?

• Linear

• Exponential

• Circular

• Parabolic

What factors can cause a velocity versus time graph to deviate from being perfectly linear?

• The material of the ramp

• The size of the object

• Friction and air resistance

• The color of the object

What is a key challenge in plotting the motion of an object in free fall?

• Keeping the object in view of the motion detector

• Ensuring the object is colorful

• Making the object move in a straight line

• Ensuring the object is heavy enough

What is the shape of the position versus time graph for an object in free fall?

• Exponential

• Circular

• Parabolic

• Linear

What is the accepted value of gravitational acceleration on Earth's surface?

• 10.00 m/s²

• 9.81 m/s²

• 8.91 m/s²

• 9.57 m/s²

Why is there a discrepancy between experimental and accepted values of gravitational acceleration?

• Due to the size of the object

• Due to the color of the object

• Due to incorrect calculations

• Due to air resistance

What symbol is used to represent the acceleration due to gravity?

• v

• g

• G

• A