Physics Semester Review

Front

What is free fall?

Back

Free fall is the motion of an object under the influence of gravitational force only, with no other forces acting on it.

Front

What does a displacement vs time graph represent?

Back

A displacement vs time graph shows how the position of an object changes over time.

Front

How do you find the net force when two forces act in opposite directions?

Back

You must subtract the smaller force from the larger force to find the net force.

Front

What does the slope of a velocity vs time graph represent?

Back

The slope of a velocity vs time graph represents the acceleration of the object.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time.

Front

What is the relationship between speed and direction in circular motion?

Back

In circular motion, an object can have constant speed while its direction changes, resulting in acceleration.

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) = (final velocity (v) - initial velocity (u)) / time (t).

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is the significance of the area under a velocity vs time graph?

Back

The area under a velocity vs time graph represents the displacement of the object.

Front

What is a vector quantity?

Back

A vector quantity is a physical quantity that has both magnitude and direction, such as force, velocity, and acceleration.