Physics Concepts and Applications

This video tutorial reviews Unit 1: Kinematics for AP Physics 1. It covers preliminary topics like significant figures and conversions, and delves into vectors, scalars, displacement, speed, velocity, acceleration, and uniformly accelerated motion equations. The tutorial also explains motion graphs, two-dimensional motion, projectile motion, and relative motion, providing examples and problem-solving techniques throughout.

Why are significant figures not emphasized in the AP Physics 1 exam?

• The exam focuses on conceptual understanding.

• They are too complex for the exam.

• The exam assumes all students know them.

• They are not relevant to physics.

Which of the following is a vector quantity?

• Energy

• Velocity

• Time

• Mass

What is the main difference between speed and velocity?

• Speed is a vector, velocity is a scalar.

• Speed has direction, velocity does not.

• Speed is always greater than velocity.

• Speed is scalar, velocity is vector.

What does the slope of a position versus time graph represent?

• Acceleration

• Velocity

• Time

• Displacement

In free fall, what is the acceleration of an object near the Earth's surface?

• 10 m/s²

• 0 m/s²

• 9.81 m/s²

• Depends on the object's mass

How many UAM equations are provided on the equation sheet?

• Three

• Two

• Five

• Four

What is the area under a velocity versus time graph?

• Change in velocity

• Change in position

• Acceleration

• Time

When resolving a vector at an angle with the vertical, which trigonometric function is used for the x-component?

• Cosine

• Sine

• Tangent

• Cotangent

In projectile motion, what is the acceleration in the x-direction?

• Depends on the initial velocity

• 0 m/s²

• 9.81 m/s²

• 10 m/s²

How does the velocity of car A relative to car B compare if car A is moving faster than car B in the same direction?

• It is the average of their velocities.

• It is the difference of their velocities.

• It is the sum of their velocities.

• It is the product of their velocities.