A group of students is playing tug-of-war. The students on both sides of the rope are pulling with equal force so that the rope is not moving. This is an example of

• unbalanced forces

• balanced forces

• acceleration

• displacement

Tags

Force

A firefighter feels the hose pushing backwards onto him as he uses it to put out a fire. What is the most likely cause of this?

• The hose material is very elastic

• Since the hose is at rest, it tends to stay at rest

• The force exerted on the water equals the mass of the water times its acceleration

• The escaping water exerts an equal and opposite force on the hose

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Newton's 3rd Law

If the same force is applied to each of the balls pictured below, which one will have the LEAST acceleration?

• Ball A

• Ball B

• Ball c

• Ball D

Tags

Newton's 1st Law

Which of the following is measured in Newtons?

• weight

• momentum

• mass

• acceleration

Tags

Newton's 2nd Law

The upward force on an object falling through the air is ____.

• air resistance

• momentum

• inertia

• gravity

Tags

Force

Newton's 1st Law

The relationship among mass, force, and acceleration is explained by ____.

• Law of Conservation of Momentum

• Newton's 1st Law of Motion

• Newton's 2nd Law of Motion

• Newton's 3rd Law of Motion

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Newton's 2nd Law

According to Newton’s laws, for any object, the greater the force that's applied to it, the greater its ____ will be.

• acceleration

• inertia

• gravity

• size

Tags

Newton's Laws

The size of the gravitational force between two objects depends on their ____.

• frictional forces

• inertia

• masses and the distance between them

• speed and direction

Tags

Force

Newton's 2nd Law

An astronaut is planning a trip to a newly-discovered planet. According to the Law of Universal Gravitation, the astronaut's weight on the new planet will be greater than his weight on Earth if:

• the new planet has less gravity than Earth

• the new planet has the same gravity as Earth.

• the new planet has more gravity than Earth

• the gravity of the planet doesn't matter. Weight is the same everywhere in the universe.

Tags

Newton's 2nd Law

"To every action there is an equal and opposite reaction" describes which law?

• Law of Inertia

• Newton's 1st Law of Motion

• Newton's 2nd Law of Motion

• Newton's 3rd Law of Motion

Tags

Newton's 3rd Law