8-9 F=ma and W=mg

Front

What is the formula for calculating force?

Back

F = m × a, where F is force, m is mass, and a is acceleration.

Front

What does 'mass' refer to in physics?

Back

Mass refers to the amount of matter in an object.

Front

What is the scientific unit of mass?

Back

The scientific unit for mass is the kilogram (kg).

Front

How does mass differ from weight?

Back

Mass is the amount of matter in an object and does not change regardless of location, while weight is the force exerted by gravity on that mass and can change depending on the gravitational field.

Front

What is the weight of an object with a mass of 10 kg on Earth?

Back

Weight (W) = m × g = 10 kg × 9.81 m/s² = 98.1 Newtons.

Front

What is the acceleration due to gravity on Earth?

Back

The acceleration due to gravity on Earth is approximately 9.81 m/s².

Front

If an object has a mass of 5 kg and is accelerating at 3 m/s², what is the force acting on it?

Back

F = m × a = 5 kg × 3 m/s² = 15 Newtons.

Front

What happens to the mass of an object if it is taken to the Moon?

Back

The mass of the object remains the same regardless of its location, including on the Moon.

Front

What is the relationship between mass and acceleration in Newton's second law?

Back

According to Newton's second law, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Front

What is the formula for calculating weight?

Back

Weight (W) = m × g, where m is mass and g is the acceleration due to gravity.