Physics Beginner Quiz

What is Newton's first law of motion?

• An object at rest will move in a straight line

• An object at rest will stay at rest, and an object in motion will stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

• An object in motion will eventually come to a stop

• An object in motion will change direction without any force

According to Newton's second law of motion, what is the relationship between force, mass, and acceleration?

• Force is directly proportional to acceleration but not to mass

• Force is directly proportional to mass and acceleration

• Force is directly proportional to mass but not to acceleration

• Force is inversely proportional to mass and acceleration

State Newton's third law of motion.

• For every action, there is no reaction.

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

• For every action, there is a random reaction.

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

What is the SI unit of force?

• Meter (m)

• Joule (J)

• Kilogram (kg)

• Newton (N)

A 10 kg object is moving with a velocity of 5 m/s. What is its momentum?

• 50 kg m/s

• 25 kg m/s

• 2.5 kg m/s

• 100 kg m/s

What is the equation for average velocity?

• v = (xf - xi) / (tf - ti)

• v = (xf * xi) / (tf * ti)

• v = (xf - xi) * (tf - ti)

• v = (xf + xi) / (tf - ti)

A car accelerates from rest at 2 m/s^2 for 10 seconds. What is its final velocity?

• 15 m/s

• 20 m/s

• 5 m/s

• 30 m/s

What is the formula for acceleration?

• a = v * t

• a = (v - u) / t

• a = (v + u) / t

• a = (v * u) / t

A ball is thrown vertically upward with an initial velocity of 20 m/s. How high does it go?

• 25.6 meters

• 15.2 meters

• 10.8 meters

• 20.4 meters

A train is traveling at a speed of 30 m/s. How long will it take to travel 1500 meters?

• 50 seconds

• 10 seconds

• 100 seconds

• 25 seconds