Final Physics Review

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by a net external force.

Front

What is Newton's Second Law of Motion?

Back

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 is Newton's Third Law of Motion?

Back

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

Front

Define weight in physics.

Back

Weight is the force exerted by gravity on an object, calculated as the product of mass and gravitational acceleration (W = mg).

Front

What is the formula for calculating distance traveled under uniform acceleration?

Back

d = vt + 0.5at², where d is distance, v is initial velocity, a is acceleration, and t is time.

Front

What is the acceleration due to gravity on Earth?

Back

Approximately 9.8 m/s².

Front

Define potential energy.

Back

Potential energy is the stored energy in an object due to its position or configuration.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion, calculated as KE = 0.5mv², where m is mass and v is velocity.

Front

What is the coefficient of friction?

Back

The coefficient of friction is a dimensionless scalar value that represents the frictional force between two bodies in contact.

Front

How do you calculate the force of friction?

Back

Frictional force (f) can be calculated using the formula f = μN, where μ is the coefficient of friction and N is the normal force.