P.S. FINAL EXAM PRACTICE TEST PHYSICS FALL 24

Front

What is force?

Back

Force is a vector quantity that represents a push, pull, or twist on an object, measured in Newtons (N).

Front

What is the sequence of energy transformations in a car engine?

Back

Chemical Energy (CE) transforms to Thermal Energy (TE), which then transforms to Mechanical Energy (ME).

Front

What does Newton's 2nd Law of Motion state?

Back

Newton's 2nd Law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

Front

What does Newton's 1st Law of Motion state?

Back

Newton's 1st Law states that an object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by a net external force.

Front

What is the sequence of energy transformations in an electric power plant?

Back

Chemical Energy (CE) transforms to Thermal Energy (TE), then to Mechanical Energy (ME), and finally to Electrical Energy (EE).

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, measured in meters per second squared (m/s²).

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

What is 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 principle of conservation of energy?

Back

The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is work in physics?

Back

Work is done when a force causes an object to move, calculated as Work = Force x Distance x cos(θ), where θ is the angle between the force and the direction of motion.