Describing Motion

Flashcards based on the key concepts and definitions related to motion, as covered in the lecture notes.

What is the study of motion called in physics?

The study of motion is called kinematics.

How is motion defined in physics?

Motion is defined as a change in the position of a body with respect to a reference point.

What does distance refer to in physics?

Distance is the length measured between two points.

Is distance a scalar or vector quantity?

Distance is a scalar quantity.

What is displacement in the context of motion?

Displacement is the shortest path from an initial position to a later position.

Is displacement a scalar or vector quantity?

Displacement is a vector quantity.

How is speed calculated?

Speed is calculated by the formula s = d/t.

What type of quantity is speed?

Speed is a scalar quantity as it specifies magnitude only.

How is velocity different from speed?

Velocity specifies both magnitude and direction.

What does acceleration represent?

Acceleration represents the change in velocity over a period of time.

How is average acceleration calculated?

Average acceleration is calculated by dividing the change in velocity by the change in time.

What does inertia refer to in physics?

Inertia refers to the tendency of an object to resist changes in its state of motion.

Who conducted experiments that challenged Aristotle's theories of motion?

Galileo Galilei conducted experiments that challenged Aristotle's theories.

What is Galileo's law of inertia?

An object in motion will continue to move in a straight line at a constant velocity unless acted upon by an external force.

What types of motion are mentioned in the notes?

The types of motion mentioned are translation, rotation, and vibration.

What are the two types of translation?

The two types of translation are linear motion and curvilinear motion.

What external forces can cause objects to slow down?

Friction and other external forces can cause objects to slow down.

What discovery did Galileo make about falling objects?

Galileo discovered that objects of different weights land simultaneously with slight differences in time due to air resistance.