Chapter 10 science

What is required for a rocket to lift off into space?

Thrust is required for a rocket to lift off into space,

According to Newton's third law of motion, when a hammer strikes and exerts force on a nail, the nail __.

According to Newton's third law of motion, when a hammer strikes and exerts force on a nail, the nail exerts a force of equal strength in the opposite direction on the first object.

According to the law of conservation of momentum, when two objects collide in the absence of friction, momentum is __ __.

According to the law of conservation of momentum, when two objects collide in the absence of friction, momentum is not lost.

Air resistance is a type of __.

Air resistance is a type of fluid friction.

An object that travels around another object in space is called a __.

An object that travels around another object in space is called a satellite.

Any force that causes an object to move in a circle is called ___ force.

Any force that causes an object to move in a circle is called centripetal force.

Balanced forces acting on an object __ the object's motion.

Balanced forces acting on an object do not change the object's motion.

Forces can be added together only if they are acting on the __ object.

Forces can be added together only if they are acting on the same object.

In physical science, a push or pull is called a __.

In physical science, a push or pull is called a force.

Know the following Key Terms: force, newton, net force, unbalanced forces, balanced forces, friction, static friction, sliding friction, rolling friction, fluid friction, gravity, mass, weight, free fall, air resistance, projectile, compression, tension, inertia, momentum, law of conservation of momentum.

N/A just study...

You will be given diagrams showing gravitational force between objects indicated only by arrows. You'll be asked to show your understanding of balanced and unbalanced forces.

N/A just study...

Objects falling through air experience a type of friction called __.

Objects falling through air experience a type of friction called air resistance.

The achievement of lifting a rocket off the ground and into space can be explained by Newton's __ law.

The achievement of lifting a rocket off the ground and into space can be explained by Newton's third law of motion.

The amount of matter in an object is called its __.

The amount of matter in an object is called its mass.

The force of gravity on a person or object on the surface of the planet is called__.

The force of gravity on a person or object on the surface of the planet is called weight.

The force that one surface exerts on another when the two rub against each other is called __.

The force that one surface exerts on another when the two rub against each other is called friction.

The force that pulls falling objects toward Earth is called __.

The force that pulls falling objects toward Earth is called gravity.

The greater the mass of an object, the greater its __.

The greater the mass of an object, the greater its inertia.

The law of universal gravitation states that ant two objects in the universe, without exception, __ each other.

The law of universal gravitation states that ant two objects in the universe, without exception, attract each other.

The product of an object's mass and velocity is called its __.

The product of an object's mass and velocity is called its momentum.

The tendency of an object to resist change in its motion is known as__.

The tendency of an object to resist change in its motion is known as inertia.

When the only force acting on a falling object is gravity, the object is said to be in __.

When the only force acting on a falling object is gravity, the object is said to be in free fall.

What happens when two forces act in the same direction?

when two forces act in the same direction, they combine forces.

How can you increase the momentum of an object?

you increase the momentum of an object by Increasing the object's speed, or its mass.