3.2 Kinematics

• Kinematics describes the motion of objects using displacement, velocity, and acceleration.

  True
• Match the kinematic term with its definition:

  Kinematics ↔️ Study of motion without forces

  Displacement ↔️ Change in position

  Velocity ↔️ Rate of change of displacement

  Acceleration ↔️ Rate of change of velocity
• Speed is a scalar quantity that measures the rate at which an object covers distance
• Speed is a scalar quantity that measures the rate at which an object covers distance
• Speed is defined as the distance traveled per unit of time
• Velocity is defined as the rate of displacement
• What does speed measure?

  Rate at which distance is covered
• What is the average speed of a car that travels 120 miles in 2 hours?

  60 mph
• Give an example of kinematics involving constant velocity.

  A car traveling a distance
• Kinematics focuses on motion without considering the forces that cause it.
• Match the term with its direction and magnitude properties:

  Speed ↔️ No direction, yes magnitude

  Velocity ↔️ Yes direction, yes magnitude
• Speed has direction, while velocity does not.

  False
• What is the definition of speed?

  Rate of distance covered
• What is the definition of velocity?

  Rate of displacement
• Speed indicates how fast an object is moving without specifying its direction
• Velocity is a vector quantity with both magnitude and direction
• What is the definition of acceleration?

  Rate of change of velocity
• Order the fundamental equations of motion in kinematics:

  1️⃣ Displacement-Velocity-Time Equation

  2️⃣ Velocity-Time Equation

  3️⃣ Velocity-Displacement Equation
• In the Displacement-Velocity-Time Equation, `s` represents displacement
• The Velocity-Time Equation includes the final velocity of an object.


  True
• What does kinematics study?

  Motion without considering forces
• What is the primary focus of kinematics?

  Motion without forces
• Speed is a scalar quantity that measures the rate at which an object covers distance.
• Acceleration is a vector quantity.


  True
• The velocity-time equation is v = u + at
• What does the variable 'v' represent in the velocity-time equation?

  Final velocity
• What are the two components of a vector quantity?

  Magnitude and direction
• A car traveling at 60 mph north has a velocity of 60 mph in the northward direction.
• The horizontal displacement equation for a projectile is x
• The range of a projectile is maximized when the launch angle is 45 degrees.
• Relative velocity is calculated by adding or subtracting the velocities of two frames of reference.
• Kinematics is the study of motion without considering the forces
• What is displacement?

  Change in position
• If a car travels 120 miles in 2 hours, what is its average speed?

  60 mph
• Give an example that contrasts speed and velocity.

  A car traveling north
• Speed is a scalar quantity because it has no direction.


  True
• Velocity is a vector quantity because it has both magnitude and direction.


  True
• Match the kinematic term with its definition:

  Speed ↔️ Rate of distance covered

  Velocity ↔️ Rate of displacement
• What two properties does velocity have?

  Magnitude and direction
• Acceleration is a vector quantity with both magnitude and direction.


  True