Momentum recap

Front

The momentum of an object depends upon the object's ___________ & ___________.

Back

mass and velocity

Front

A 9 kg blob moving at 5 m/s collides and sticks to a second blob with a mass of 5 kg. What is the velocity of the two blobs after the collision?

Back

3.2 m/s

Front

When the speed of an object is doubled, its momentum:

Back

doubles

Front

An egg is thrown at a wall and at a bed sheet. The force of impact will be:

Back

Greater against the wall

Front

When a cannon fires a cannonball, which force is the reaction force?

Back

The cannon moving backward

Front

Define momentum.

Back

Momentum is the product of an object's mass and its velocity.

Front

What is the formula for calculating momentum?

Back

p = mv (where p is momentum, m is mass, and v is velocity)

Front

Explain the principle of conservation of momentum.

Back

In a closed system, the total momentum before an event is equal to the total momentum after the event.

Front

What happens to momentum in an elastic collision?

Back

Momentum is conserved, and both kinetic energy and momentum are transferred between the colliding objects.

Front

What happens to momentum in an inelastic collision?

Back

Momentum is conserved, but kinetic energy is not; some kinetic energy is transformed into other forms of energy.