Newton's Laws and Net Force

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.

Front

What is the formula to calculate acceleration?

Back

Acceleration (a) can be calculated using the formula a = F/m, where F is the net force applied and m is the mass of the object.

Front

If a force of 26 N is applied to two balls with masses of 0.52 kg and 0.78 kg, which ball has greater acceleration?

Back

The ball with a mass of 0.52 kg will have the greatest acceleration.

Front

What is inertia?

Back

Inertia is the resistance of an object to any change in its motion. It is directly related to the mass of the object.

Front

What are balanced forces?

Back

Balanced forces are two equal forces acting in opposite directions on an object, resulting in no change in motion.

Front

What is an action/reaction force pair?

Back

An action/reaction force pair consists of two forces that are equal in size, but opposite in direction, such as a hockey stick hitting a puck and the puck pushing back against the stick.

Front

How do you calculate net force?

Back

Net force is calculated by adding all the individual forces acting on an object, taking into account their directions.

Front

What is the acceleration of a 10 kg wagon pulled with a force of 44 N?

Back

The acceleration is 4.4 m/s².

Front

What is the relationship between mass and acceleration when a constant force is applied?

Back

As mass increases, acceleration decreases when a constant force is applied, according to Newton's 2nd Law.

Front

What is the difference between mass and weight?

Back

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