Physics Semester 1 Final Exam Review - long

Front

What is the formula for calculating work?

Back

Work (W) = Force (F) × Distance (d) × cos(θ), where θ is the angle between the force and the direction of motion.

Front

What is the unit of work in the International System of Units (SI)?

Back

The unit of work is the Joule (J).

Front

How do you calculate force if work and distance are known?

Back

Force (F) = Work (W) / Distance (d).

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

Where is kinetic energy maximum on a roller coaster?

Back

Kinetic energy is maximum at the bottom of a big hill.

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or configuration, commonly calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

At which point is potential energy greatest on a roller coaster?

Back

Potential energy is greatest at the highest point of the track.

Front

What does a graph of distance vs. time represent?

Back

A graph of distance vs. time shows how distance changes over time, indicating speed and motion.

Front

What does a horizontal line on a distance vs. time graph indicate?

Back

A horizontal line indicates that the object is at rest (no change in distance over time).

Front

What is constant velocity?

Back

Constant velocity means an object is moving at a steady speed in a straight line without changing direction.