Physical Science Semester 1 Review

Front

What is the formula to calculate force?

Back

Force (F) = Mass (m) × Acceleration (a)

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.

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or configuration, such as a boulder at the top of a hill.

Front

What does the law of conservation of momentum state?

Back

In a closed system, the total momentum before a collision is equal to the total momentum after the collision.

Front

What is Newton's First Law of Motion?

Back

An object in motion will remain in motion, and an object at rest will remain at rest unless acted upon by a net external force.

Front

What is the unit of force in the International System of Units (SI)?

Back

The unit of force is the Newton (N).

Front

How do you calculate the weight of an object?

Back

Weight (W) = Mass (m) × Gravitational acceleration (g), where g is approximately 9.81 m/s² on Earth.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion, calculated as KE = 1/2 mv².

Front

What is the relationship between mass and acceleration in Newton's Second Law?

Back

As mass increases, for a constant force, acceleration decreases.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.