Newton's 2nd Law

Front

What is Newton's 2nd Law of Motion?

Back

Newton's 2nd Law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. It can be expressed with the formula: F = ma (Force = mass x acceleration).

Front

What is net force?

Back

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

Front

How do you calculate mass using Newton's 2nd Law?

Back

Mass can be calculated using the formula: m = F/a, where F is the net force and a is the acceleration.

Front

What happens to an object's acceleration if the net force is zero?

Back

If the net force is zero, the object will not accelerate; it will either remain at rest or continue moving at a constant velocity.

Front

What is the relationship between force, mass, and acceleration?

Back

The relationship is defined by Newton's 2nd Law: the greater the force applied to an object, the greater its acceleration, and the greater the mass of the object, the less acceleration it will have for the same force.

Front

What is an example of balanced forces?

Back

An example of balanced forces is a book resting on a table. The force of gravity pulling the book down is balanced by the normal force from the table pushing it up.

Front

What is an example of unbalanced forces?

Back

An example of unbalanced forces is when a person pushes a shopping cart. If the force applied is greater than the friction, the cart will accelerate in the direction of the push.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What is the effect of increasing mass on acceleration if the force remains constant?

Back

If the mass increases while the force remains constant, the acceleration will decrease, as per the formula a = F/m.

Front

What is the effect of increasing force on acceleration if the mass remains constant?

Back

If the force increases while the mass remains constant, the acceleration will increase, as per the formula a = F/m.