Impulse and Momentum HW

Front

What is impulse?

Back

Impulse is the product of the average force applied to an object and the time duration over which it is applied. It is measured in Newton-seconds (N s) and is equal to the change in momentum of the object.

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity. It is a vector quantity, meaning it has both magnitude and direction, and is measured in kilogram-meters per second (kg m/s).

Front

What is the impulse-momentum theorem?

Back

The impulse-momentum theorem states that the impulse on an object is equal to the change in momentum it causes.

Front

How do you calculate impulse?

Back

Impulse can be calculated using the formula: Impulse = Force × Time.

Front

What is the formula for momentum?

Back

The formula for momentum (p) is: p = mass (m) × velocity (v).

Front

If a 5 N force is applied to a 3 kg ball, what is the impulse if the velocity changes from +9 m/s to +3 m/s?

Back

The impulse is -18 N s.

Front

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

Back

According to Newton's second law, Force = mass × acceleration (F = m × a).

Front

How do you find the net force required to stop an object?

Back

To find the net force required to stop an object, use the formula: Net Force = (mass × change in velocity) / time.

Front

What is the unit of impulse?

Back

The unit of impulse is Newton-seconds (N s).

Front

What is the significance of a negative impulse?

Back

A negative impulse indicates that the force applied is in the opposite direction of the object's motion, resulting in a decrease in velocity.