Flashcard 6 - Matter & Energy

Front

What is the term for the rate of change of velocity?

Back

Acceleration

Front

What is the name of an object that swings back and forth from a fixed point?

Back

Pendulum

Front

How do you calculate power in a physics experiment?

Back

Power = Energy transferred / Time taken

Front

What force opposes the motion of an object through a fluid?

Back

Drag force

Front

What is the unitless number that describes the friction between two surfaces?

Back

Coefficient of friction

Front

What is the formula for calculating kinetic energy?

Back

Kinetic Energy = 1/2 mv² (where m is mass and v is velocity)

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

What is the formula for calculating work done?

Back

Work = Force x Distance x cos(θ) (where θ is the angle between the force and the direction of motion)

Front

What is centripetal force?

Back

The force that acts on an object moving in a circular path, directed towards the center of the circle.