Physics Weekly Quiz 1

Which of the following is the correct definition for Newton's First Law of Motion?

• A. Newton's First Law of motion states that an object at rest remains at rest, when an object is in motion it continues in motion with constant velocity, in one direction, UNLESS an external force is applied.

• B. Newton's First Law of motion states that an object's acceleration is inversely proportional to the force exerted on a mass.

• C. Newton's First Law of motion states that for every action there is an opposite and equal reaction.

• D. Newton's First Law of motion states that an object at rest does not remain at rest, when an object is in motion it does not continue in motion with constant velocity, in one direction, UNLESS an external force is applied.

Which of the following is the correct definition for Newton's Third Law of Motion?

• A. Newton's Third Law of motion states that an object at rest remains at rest, when an object is in motion it continues in motion with constant velocity, in one direction, UNLESS an external force is applied.

• B. Newton's Third Law of motion states that an object's acceleration is inversely proportional to the force exerted on a mass.

• C. Newton's Third Law of motion states that for every action there is an opposite and equal reaction.

• D. Newton's Third Law of motion states that for every action there is not an opposite and equal reaction.

Which of the following is the correct definition for Newton's Second Law of Motion?

• A. Newton's Second Law of motion states that an object at rest remains at rest, when an object is in motion it continues in motion with constant velocity, in one direction, UNLESS an external force is applied.

• B. Newton's Second Law of motion states that an object's acceleration is inversely proportional to the force exerted on a mass.

• C. Newton's Second Law of motion states that for every action there is an opposite and equal reaction.

• D. Newton's Second Law of motion states that an object's force is inversely proportional to the force exerted on a mass.

Which of the following best represents equilibrium?

• Two liquids at the same level.

• Two people at the same height.

• Two people at the same height that have the same eye level.

• A chemical reaction that comes to completion as the reactant and products stop reacting with one another.

Which of the following represents a vector?

• Force

• Momentum

• Velocity

• Acceleration

• Mass

Which of the following represent a scalar?

• Mass

• Velocity

• Force

• Acceleration

• Momentum

A student is demonstrating Newton's Second Law of Motion, the student drops a feather with mass 5kg and a bowling ball with mass 10kg, the feather is moving with an acceleration of 10m/s² and the bowling ball is with an acceleration of 15m/s². Which will have the greater force as it impacts the ground?

• The feather

• The bowling ball

A student has a bowling ball with 150N of force and it is moving with a acceleration of 10m/s². What is the mass of the bowling ball? Assuming the bowling ball is rolling across a frictionless surface.

• 15kg

• 1500kg

• 0.066kg

A student has a ping pong ball with a mass of 5kg, she drops it down a well. The acceleration of the pingpong ball moving down the well is 10m/s². What will the force be when the ball hits the bottom of the well? Assuming air resistance is negligible.

• 50N

• 2N

• 0.5N

A football player holds a football, the combined mass of the player and ball are 120kg, moving with a force of 240N across a field. What will be the acceleration of the player with the ball in hand? Assuming no frictional force.

• 2m/s²

• 28800m/s²

• 0.5m/s²