chapter 2 guided notes

what is kinematics?

• how far you have traveled

• motion and study of movement

• quantity with magnitude only

• speed, time, mass, energy

What is scalar? What are some examples?

• quantity with magnitude only

• distance, speed, time, mass, energy

• displacement, velocity, acceleration, momentum, force

• how fast you go

What is a vector? what are some examples?

• Vectors are only used in computer graphics.
• Examples of vectors include temperature and mass.
• quantity with both magnitude (size) and direction. ex: displacement, velocity

• A vector is a scalar quantity.

difference between distance and displacement?

• Distance is the total path length traveled; displacement is the shortest straight-line distance from start to end.
• Distance and displacement are the same concept.
• Displacement measures the total distance traveled regardless of direction.
• Distance is always greater than displacement.

what is the difference between speed and velocity?

• Speed is how fast you go; velocity is vector (includes direction).

• Speed includes direction while velocity does not.
• Velocity measures distance only.
• Speed is always greater than velocity.

what is the formula for average velocity and its SI units

• Average velocity = total speed / total time; SI units: meters per minute (m/min)
• Average velocity = total displacement / total distance; SI units: feet per second (ft/s)
• Average velocity = total displacement / total time; SI units: meters per second (m/s)
• Average velocity = total distance / total time; SI units: kilometers per hour (km/h)

What is the formula for acceleration and its SI units?

• Average acceleration= change of velocity/ time

• average acceleration= time/ change of velocity

• average velocity= displacement/ time

• average velocity= time/ displacement

what are the problem solving steps for id motion?

• Identify, Gather, Analyze, Develop, Test, Evaluate.
• Plan, Execute, Review, Implement, Monitor, Conclude
• Define, Research, Create, Validate, Launch, Reflect
• Select, Organize, Execute, Assess, Report, Finalize

what is a x-t graph?

• An x-t graph is a type of bar graph used for statistical data.
• An x-t graph is a velocity-time graph that shows speed changes.
• An x-t graph is a position-time graph that shows that velocity is the slope

• An x-t graph represents the relationship between force and time.

what is a v-t graph?

• A v-t graph shows the position of an object over time.
• A v-t graph represents the acceleration of an object as a function of time.
• A v-t graph is a graphical representation that acceleration is the slope

• A v-t graph is a diagram that illustrates the force acting on an object.