IPC Chapter 5

Calculate the amount of horizontal force needed to make a 0.5 kg football accelerate at 200 m/s2 when kicked>

• 200N

• 100N

• 50N

• 250N

What is the weight in Newton (N) of 442g World Cup soccer ball?

• 4.3N

• 5N

• .442 kg

• 442g

• 4.8N

Who first described inertia?

• Newton

• Aristotle

• Kepler

• Einstein

Inertia is responsible for all of the following EXCEPT:

• Throwing a person against a seatbelt

• Planets staying in orbit

• kicking dirt off a shoe

• gravity

On Earth, the acceleration due to gravity is 9.8 m/s2. If a person has a mass of 50,000g, how much force do they exert in Newton's?

• 50,000N

• 490N

• 490,000N

• 50N

Which best describes inertia?

• The resistance of motion

• The tendency of objects to remain as they are

• the amount of matter an object has

• the tendency of objects to start moving from a force

• The resistance of being stationary

If you exerted a force of 1000 Newtons on an object weighing 40 kilograms, how much was the acceleration?

• 2500 meters per second squared

• 40000 meters per second squared

• 100 meters per second squared

• 25 meters per second squared

A jet engine creates a force of 42,000 Newtons air flowing through it. How much force does that air create back on the jet engine in return?

• 0 N

• 4200 N

• 42,000 N

• -42,000 N

The elevator and the passengers have a mass of 5500 kg. The elevator accelerates from 1.0 m/s2 to 2.0 m/s2. What is the magnitude of the net force acting on the elevator as it accelerates?

• 5500 N

• 55 N

• 11000 N

• 1100 N

• 550 N

A force of 250 N is exerted on an object with a mass of 25 kg located on a smooth surface. In a second trial, a second object that is identical to the first is placed on top of the first object. What acceleration would the 250 N force produce?

• 20 meters per second squared

• 5 meters per second squared

• 15 meters per second squared

• 50 meters per second squared