Newton's 2nd & Momentum Review

Front

What is Newton's 2nd Law of Motion?

Back

Newton's 2nd Law states that the force acting on an object is equal to the mass of that object multiplied by its acceleration (F = ma).

Front

How do you calculate force using mass and acceleration?

Back

Force (F) is calculated using the formula F = ma, where m is mass and a is acceleration.

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, represented by the formula p = mv.

Front

What is the unit of momentum?

Back

The unit of momentum is kilogram meter per second (kg·m/s).

Front

What is the difference between scalar and vector quantities?

Back

Scalar quantities have only magnitude (e.g., mass, temperature), while vector quantities have both magnitude and direction (e.g., force, momentum).

Front

What is the condition for an object to have momentum?

Back

An object must be moving to have momentum.

Front

If a 2.5 kg toy moving at 5 m/s collides with a stationary toy of the same mass, what happens to the momentum?

Back

Momentum is conserved in the collision; the second toy will move with a velocity of 5 m/s after the collision.

Front

What is the formula for calculating momentum?

Back

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

Front

What happens to momentum when two objects collide?

Back

The total momentum before the collision is equal to the total momentum after the collision, assuming no external forces act on them.

Front

What is an example of a vector quantity?

Back

An example of a vector quantity is velocity, which has both speed and direction.