Fall Final Review - 2.0

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to accelerate or change its motion. It occurs when the net force acting on an object is not zero.

Front

What is net force?

Back

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

Front

How do you calculate net force?

Back

To calculate net force, add all the forces acting on an object, taking into account their direction. If forces are in opposite directions, subtract the smaller force from the larger one.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass cannot be created or destroyed in a chemical reaction. The total mass of reactants equals the total mass of products.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It is measured in meters per second squared (m/s²).

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) = (Final Velocity (v) - Initial Velocity (u)) / Time (t).

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, measured in kilograms (kg). Weight is the force exerted by gravity on that mass, measured in newtons (N).

Front

What is the unit of force?

Back

The unit of force is the newton (N). One newton is the force required to accelerate a one-kilogram mass by one meter per second squared.

Front

What does it mean for an equation to obey the law of conservation of mass?

Back

An equation obeys the law of conservation of mass if the total mass of the reactants equals the total mass of the products.

Front

What is an example of a balanced force?

Back

An example of a balanced force is when two people push a car with equal force in opposite directions, resulting in no movement.