Podcast
Questions and Answers
What is the only force acting on a cannonball in projectile motion?
What is the only force acting on a cannonball in projectile motion?
- Air resistance
- Friction
- Gravity (correct)
- Magnetic force
Which direction does a cannonball move in projectile motion?
Which direction does a cannonball move in projectile motion?
- Sideways only
- Only upwards
- Only downwards
- Both upwards and sideways (correct)
What is the value of acceleration due to gravity on Earth in meters per second squared?
What is the value of acceleration due to gravity on Earth in meters per second squared?
- 9.8
- -9.8 (correct)
- -10.2
- 10.2
Which set of equations govern 2D projectile motion?
Which set of equations govern 2D projectile motion?
What is the equation that represents the velocity of the cannonball in the x-direction?
What is the equation that represents the velocity of the cannonball in the x-direction?
What is the first step recommended to calculate where to place the target on the floor?
What is the first step recommended to calculate where to place the target on the floor?
What happens to the velocity of a cannonball in the x-direction once it is launched?
What happens to the velocity of a cannonball in the x-direction once it is launched?
In the lab setup described, what does the center of the target on the floor represent?
In the lab setup described, what does the center of the target on the floor represent?
Why does a cannonball experience an acceleration in the y-direction during projectile motion?
Why does a cannonball experience an acceleration in the y-direction during projectile motion?
What does a negative acceleration value signify in this context?
What does a negative acceleration value signify in this context?
What is critical to reduce in order to minimize the marble drifting sideways?
What is critical to reduce in order to minimize the marble drifting sideways?
What is the significance of measuring the distance using a ruler or tape measure in the lab solution?
What is the significance of measuring the distance using a ruler or tape measure in the lab solution?
Which step involves calculating the time of flight from the edge of the table to the floor?
Which step involves calculating the time of flight from the edge of the table to the floor?
What causes a marble to receive a 'C grade' in this lab setup?
What causes a marble to receive a 'C grade' in this lab setup?
What should you do if your marble fails to hit the target even after following all previous steps correctly?
What should you do if your marble fails to hit the target even after following all previous steps correctly?
What should you do if your marble starts to drift sideways during the lab experiment?
What should you do if your marble starts to drift sideways during the lab experiment?
Why is it important to measure the speed of the marble moving across the table?
Why is it important to measure the speed of the marble moving across the table?
In the lab setup described, what happens when the marble leaves the table?
In the lab setup described, what happens when the marble leaves the table?
What is the main source of error in this lab experiment?
What is the main source of error in this lab experiment?
Which step in the lab solution involves calculating the displacement in the x-direction?
Which step in the lab solution involves calculating the displacement in the x-direction?
What does a value of -9.8 for acceleration signify in this experiment?
What does a value of -9.8 for acceleration signify in this experiment?
Why must you let go of your marble once it reaches the calculated position for the target?
Why must you let go of your marble once it reaches the calculated position for the target?
What is crucial about measuring the distance from the edge of the table across the floor?
What is crucial about measuring the distance from the edge of the table across the floor?
What is the main force acting on a cannonball during projectile motion?
What is the main force acting on a cannonball during projectile motion?
Which direction does a cannonball move initially after being launched in projectile motion?
Which direction does a cannonball move initially after being launched in projectile motion?
What is the significance of setting up a sturdy ramp during the physics lab experiment?
What is the significance of setting up a sturdy ramp during the physics lab experiment?
Which set of equations governs 2D projectile motion according to the text?
Which set of equations governs 2D projectile motion according to the text?
Why does the cannonball experience a constant velocity in the x-direction once launched in projectile motion?
Why does the cannonball experience a constant velocity in the x-direction once launched in projectile motion?
What role does gravity play in causing acceleration during projectile motion?
What role does gravity play in causing acceleration during projectile motion?
How do the kinematics equations of constant acceleration apply to projectile motion?
How do the kinematics equations of constant acceleration apply to projectile motion?
