Physics Final Exam

Front

What is the definition of velocity?

Back

Velocity is the rate of change of an object's position with respect to time, including direction.

Front

What happens to the velocity of a ball as it is dropped off a cliff?

Back

It increases at a uniform rate.

Front

What is the formula to calculate the speed of an object given its period and radius?

Back

Speed = (2 * π * radius) / period.

Front

If a bicycle has a period of 0.3s and a radius of 30 cm, what is the speed of its tires?

Back

6 m/s.

Front

What is gravitational potential energy (PE)?

Back

PE is the energy an object possesses due to its position in a gravitational field.

Front

What happens to potential energy when a rollercoaster cart moves towards the ground?

Back

It transforms into kinetic energy (KE).

Front

What is kinetic energy (KE)?

Back

KE is the energy an object possesses due to its motion.

Front

What is the relationship between gravitational force and distance?

Back

Gravitational force decreases as the distance between two objects increases.

Front

What is the concept of free fall?

Back

Free fall is the motion of an object under the influence of gravity only, with no air resistance.

Front

What does it mean for satellites to be 'falling around' a planet?

Back

Satellites are in continuous free fall towards the planet while moving forward, creating an orbit.