Physics SG- Final Exam Fall 2022

Front

What is Constant Speed?

Back

Constant Speed is when an object moves at the same speed for an extended period of time.

Front

What does it mean when we say an object is in Free Fall?

Back

An object in Free Fall is moving under the influence of gravity only.

Front

What is the rate of acceleration of gravity at the Earth's surface?

Back

The acceleration due to gravity at the Earth's surface is approximately 9.8 m/s².

Front

What is Newton's First Law?

Back

Newton's First Law states that an object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What happens to potential and kinetic energy as a pendulum swings from its highest to lowest position?

Back

As a pendulum swings down, the potential energy decreases while the kinetic energy increases.

Front

Define Kinetic Energy.

Back

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

Front

Define Potential Energy.

Back

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

Front

What is the formula for calculating speed?

Back

Speed is calculated using the formula: Speed = Distance / Time.

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 effect of air resistance on falling objects?

Back

Air resistance opposes the motion of falling objects, reducing their acceleration and terminal velocity.