Semester Exam Review Physics

Front

What is Newton's First Law of Motion?

Back

An object in motion stays in motion, and an object at rest stays at rest unless acted upon by a net external force.

Front

Define displacement in physics.

Back

Displacement is the vector quantity that refers to the change in position of an object, taking into account the direction.

Front

How do you calculate displacement?

Back

Displacement = larger distance - smaller distance, considering direction.

Front

What is the formula for speed?

Back

Speed = total distance / total time.

Front

What is the difference between distance and displacement?

Back

Distance is a scalar quantity representing the total path length traveled, while displacement is a vector quantity that considers direction.

Front

What is Newton's Second Law of Motion?

Back

F = ma, where F is the net force, m is the mass, and a is the acceleration.

Front

How do you calculate acceleration?

Back

Acceleration = (final velocity - initial velocity) / time.

Front

What is the formula for calculating average speed?

Back

Average speed = total distance traveled / total time taken.

Front

What is the significance of direction in displacement?

Back

Direction is crucial in displacement as it indicates the shortest path from the initial to the final position.

Front

What is the unit of acceleration?

Back

The unit of acceleration is meters per second squared (m/s²).