Name: 

Completion
Complete each statement.

Mass times velocity equals ____________________.

The tendency of an object at rest to remain at rest, or if moving, to continue moving at a constant velocity is ____________________.

An object with a small mass has ____________________ inertia than an object with a large mass.

The motion of an object resulting from only the force of gravity is ____________________.

According to the universal gravitation equation, the gravitational force between two objects decreases as ________________________________________ increases.

A situation known as ___________________________________ occurs when astronauts and their surroundings all accelerate at the same rate.

When throwing a dart at a target, you should always aim ____________________ the bull’s eye.

When you stand, your weight pushes down on the ground and the ground pushes back with a force equal to your weight ___________________________________.

Newton’s ____________________ law tells us how much an object’s speed will be increased or decreased by an unbalanced force.

Mass is a measure of the amount of ____________________ in an object.

If the distance between two objects is quadrupled, the gravitational force between them _________________________ its original value.

When two billiard balls collide, the total change in momentum of the balls is ____________________.

The total momentum of objects before a collision ____________________ the total momentum of the objects after a collision.

In space, an astronaut hammers a nail. The hammer moves in one direction and the astronaut moves ___________________________________.

An example of an action-reaction pair is the action force when you jump down onto a trampoline, your weight pushes down on the surface and the reaction force when the trampoline pushes back up on you with a force ___________________________________.

When the same amount of force is applied to two different masses, the smaller mass will be accelerated ____________________ than the larger mass.

When the same force is applied to two different masses, these masses will have ____________________ accelerations.

The ____________________ of an object remains constant while its ____________________ varies according to the gravitational force it experiences.

When you kick a stone, your foot exerts a force on the stone, and the stone exerts a force ____________________ in size and ____________________ in direction on your foot.

Orbital motion is a combination of ____________________ motion and freefall.

An important safety feature in your car that is based on the concept of inertia is the ____________________.

The gravitational force on an object ____________________ as the object’s mass increases.

The path of a pitched ball is an example of ____________________ motion.

An object changes its motion only if a force acts on it to change its speed or direction. This is a statement of Newton’s ____________________.

Action and reaction forces always occur at the ____________________ time.

According to Newton’s second law of motion, force is the product of ____________________ and _________________________.

Free fall is the motion of an object resulting from ___________________________________.

The value for the acceleration of objects in free fall near Earth is ____________________.

When gravitational forces and air resistance equalize on an object that is falling toward Earth and the object stops accelerating, its velocity is called the ____________________ velocity.

An object at rest remains at rest unless it experiences a(n) ______________________________.

If the car you are riding in comes to a sudden stop, _________________________ helps stop your forward motion.

When a satellite orbits Earth, it experiences two motions: ____________________ motion and ____________________ toward Earth.

All ____________________ objects have momentum.

As the time period of an object’s momentum change becomes longer, the force needed to cause this change becomes ____________________.