Newton's Laws of Motion/Momentum

Newton's third law of motion states that if one object exerts a force on another object, then the second object exerts a force of equal strength in the _______ direction?

• same

• opposite

The total momentum of any group of objects remains the same unless outside forces act on the objects.

• True

• False

How is acceleration measured?

• meters per second squared

• meters per second

Newton's second law of motion states that an object's acceleration depends on it's __________ and on the next force acting on it?

• Inertia

• Mass

• Velocity

Newton's first law of motion states that an object will not experience a change in motion unless acted upon by what?

• An unbalanced, non-zero net force.

• An balanced force.

The less momentum an object has, the easier it is to stop.

• True

• False

What is the formula to calculate momentum?

• Momentum = Mass x Velocity

• Momentum = Mass / Velocity

The momentum of a 1000-kg vehicle traveling at a velocity of 25 m/s is 40kg × m/s.

• True

• False

If outside forces such as friction are negligible, when two objects of the same mass collide and do not stick together, the objects __________________

• combine velocities

• trade velocities

The tendency of an object to resist a change in motion is

• inertia

• mass

• force