Semester 1 Review Pt 1

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

Define displacement in physics.

Back

Displacement is the shortest distance from the initial to the final position of an object, including direction.

Front

What is the formula for calculating the height of an object in free fall?

Back

Height (h) = 0.5 * g * t^2, where g is the acceleration due to gravity (approximately 9.81 m/s²) and t is the time in seconds.

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

How do you calculate average speed?

Back

Average speed = Total distance traveled / Total time taken.

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 formula for calculating force?

Back

Force (F) = mass (m) * acceleration (a).

Front

Define kinetic energy.

Back

Kinetic energy is the energy of an object due to its motion, calculated as KE = 0.5 * m * v^2, where m is mass and v is velocity.

Front

What is the significance of air resistance in free fall?

Back

Air resistance opposes the motion of an object falling through the air, affecting its acceleration and terminal velocity.

Front

What is the difference between distance and displacement?

Back

Distance is the total path length traveled by an object, while displacement is the straight line distance from the starting point to the ending point.