Linear Momentum

Mr. Andersen explains linear momentum in AP Physics Essentials video 61. He demonstrates momentum transfer using a basketball and an apple, showing how mass and velocity affect momentum. Video analysis is used to calculate velocity and momentum, with a focus on graphing techniques. An experiment with spheres illustrates momentum conservation during collisions. The video concludes with a review of momentum calculations and video analysis techniques.

What is the primary factor that determines the velocity gained by the apple when dropped with the basketball?

• The color of the apple

• The mass of the basketball

• The height from which they are dropped

• The air resistance

How can the velocity of an object be determined using video analysis?

• By counting the number of frames in the video

• By measuring the object's color change

• By observing the object's shadow

• By calculating the slope of the position-time graph

What happens to the momentum of the orange sphere after it collides with the green sphere?

• It doubles

• It remains the same

• It is completely transferred to the green sphere

• It is partially transferred to the green sphere

What is the velocity of the green sphere after the collision, given it moves 1.4 meters in 0.95 seconds?

• 0.5 meters per second

• 1.0 meters per second

• 2.0 meters per second

• 1.5 meters per second

How is the conservation of momentum demonstrated in the collision between the two spheres?

• The total momentum before and after the collision is the same

• The green sphere stops moving

• The orange sphere gains more momentum

• The spheres stick together

What is the momentum of the orange sphere before the collision if its velocity is 2 meters per second and its mass is 5 kilograms?

• 10 kilogram meters per second

• 20 kilogram meters per second

• 5 kilogram meters per second

• 15 kilogram meters per second

What is the key takeaway about calculating momentum from the video?

• Momentum is only applicable to spherical objects

• Momentum is only dependent on velocity

• Momentum is calculated by multiplying mass and velocity

• Momentum is irrelevant in collisions