Net Force. Weight vs mass

Front

What is net force?

Back

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

Front

What is the formula to calculate weight?

Back

Weight (W) = mass (m) × gravitational acceleration (g).

Front

What is the value of 'g' on Earth?

Back

9.8 m/s².

Front

What is the difference between mass and weight?

Back

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

Front

What does mass measure in an object?

Back

Mass measures the amount of matter in an object, which is also a measure of its inertia.

Front

What is inertia?

Back

Inertia is an object's resistance to changes in its state of motion.

Front

How does gravity affect weight?

Back

Weight varies depending on the gravitational pull of the planet or moon an object is on; more gravity means more weight.

Front

What is the weight of a 50 kg object on the Moon (g = 1.7 m/s²)?

Back

Weight = 50 kg × 1.7 m/s² = 85 N.

Front

What is the net force if two forces of 30 N and 20 N act in the same direction?

Back

Net force = 30 N + 20 N = 50 N.

Front

What happens to an object's weight if it is taken to a planet with stronger gravity?

Back

The object's weight increases because weight is directly proportional to gravitational acceleration.