Physical Science Semester 1 Units (2024)

Front

What is vaporization?

Back

Vaporization is the process by which a liquid turns into a gas. It occurs when molecules in the liquid gain enough energy to overcome intermolecular forces.

Front

What is net force?

Back

Net force is the overall force acting on an object when all the individual forces acting on it are combined. It determines the object's motion.

Front

What is the normal force?

Back

The normal force is the force exerted by a surface to support the weight of an object resting on it, acting perpendicular to the surface.

Front

What type of electromagnetic wave is used in cell phones?

Back

Radio waves are the type of electromagnetic waves used for communication in cell phones.

Front

What determines the direction of an object's movement?

Back

The direction of an object's movement is determined by the net force acting on it; the object will move in the direction of the net force.

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, calculated as the mass of the object multiplied by the acceleration due to gravity (Weight = mass × gravity).

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it is in contact with another surface.

Front

What is the principle of conservation of energy?

Back

The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position or state, such as gravitational potential energy based on height.