Unit 2: Forces and Motion (quiz#1)

What is Force?

• Force is a type of energy.
• Force is a measure of temperature.
• Force is the weight of an object.
• A push or a pull acting on an object with mass causes it to change its velocity

True or False: A force can cause things to slow down, speed up, or change direction.

• True

• False

True or False: An object at rest will stay at rest unless acted upon by an unbalanced force.

• True

• False

What is the unit of force in the International System of Units (SI)?

• Newton

• Pound

• Joule

• Meter

Which of the following best describes Newton's Second Law of Motion?

• For every action, there is an equal and opposite reaction.

• The acceleration of an object is directly proportional to the net force acting on it.

• An object in motion stays in motion unless acted upon by a force.

• Energy cannot be created or destroyed.

What are the 3 Laws of Motion?

• Law of Inertia, Law of Action and Reaction, Law of Speed

• Law of Inertia, Law of Acceleration, Law of Action and Reaction

• Law of Newon, Law of Force, Law of Acceleration

• Law of Attraction, Law of Action and Reaction, Law of Inertia

Which Law of Motion does this picture represent?

• Newton's Second Law of Motion
• Newton's Third Law of Motion
• Law of Universal Gravitation
• Newton's First Law of Motion

Which Law of Motion does this picture represent?

• Newton's First Law of Motion
• Law of Universal Gravitation
• Newton's Third Law of Motion
• Newton's Second Law of Motion

What is the Law of Acceleration?

• Acceleration is constant regardless of force and mass.
• Mass is directly proportional to acceleration and force.
• The Law of Acceleration states that force is inversely proportional to acceleration.
• The Law of Acceleration states that acceleration is directly proportional to net force and inversely proportional to mass.

Which one that describes the correct difference between balanced force and unbalanced force?

• Balanced forces always cause motion, while unbalanced forces do not.
• Balanced forces do not change an object's motion, while unbalanced forces cause acceleration.
• Unbalanced forces can only act on stationary objects, while balanced forces act on moving objects.
• Balanced forces result in acceleration, while unbalanced forces keep an object at rest.