Newton's Laws, Friction & Momentum Flashcard

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Front

What are Balanced Forces?

Back

Two forces acting in opposite directions on an object, and equal in size, resulting in no change in motion.

Front

What is the formula for Momentum?

Back

Momentum (p) is calculated using the formula p = mv, where m is mass and v is velocity.

Front

What is Newton's Second Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F = ma).

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

How do you calculate the momentum of an object?

Back

Multiply the mass of the object by its velocity (p = mv).

Front

What is the difference between Balanced and Unbalanced Forces?

Back

Balanced forces do not change an object's motion, while unbalanced forces cause an object to accelerate.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

If a 5 kg bird is flying at 20 m/s, what is its momentum?

Back

100 kg⋅m/s (calculated using p = mv).

Front

What happens to a tennis ball and a basketball when kicked with the same force?

Back

The tennis ball, having less mass, will experience greater acceleration than the basketball.