NEWish Amazing Unit 3 flashcardziz

Front

What is impulse in physics?

Back

Impulse is the change in momentum of an object when a force is applied over a period of time. It is calculated as the product of force and the time duration for which the force acts (Impulse = Ft).

Front

How does the time of a crash affect the force experienced by an object?

Back

If the time of a crash increases while the impulse remains constant, the force experienced by the object decreases. This is because Force = Impulse / Time.

Front

What is momentum and how is it calculated?

Back

Momentum (p) is the product of an object's mass (m) and its velocity (v). It is calculated using the formula p = mv.

Front

If two objects have the same mass but different velocities, how does their momentum compare?

Back

The object with the higher velocity will have greater momentum. For example, if one object is moving at double the speed of another, its momentum will also be double.

Front

What happens to the impulse if the time of impact is tripled while keeping the force constant?

Back

If the time of impact is tripled and the force remains constant, the impulse will also increase, as impulse is the product of force and time.

Front

What is the relationship between impulse and momentum?

Back

Impulse is equal to the change in momentum of an object. This means that applying an impulse to an object will change its momentum.

Front

What is the effect of a bouncy ball compared to a clay ball when thrown at a wall?

Back

A bouncy ball will bounce back, creating a greater impulse on the wall compared to a clay ball, which sticks and does not bounce.

Front

How does mass affect momentum?

Back

Momentum is directly proportional to mass. If the mass of an object increases while its velocity remains constant, its momentum will also increase.

Front

What is the formula for calculating impulse?

Back

Impulse can be calculated using the formula Impulse = Force x Time (Impulse = Ft).

Front

If a car traveling at 50 mph comes to a stop, how does its impulse compare to a car traveling at 35 mph that also stops?

Back

The car traveling at 50 mph has a greater impulse because impulse is related to the change in momentum, which is greater for the faster car.