MIDTERM QUIZ PHYSICS FOR ENGINEERS

A book is lying at rest on a table. The book will remain there at rest because

• there is a net force but the book has too much inertia

• there are no forces acting on it at all

• there is no net force on the book

• there is a net force, but the book is too heavy to move

A hockey puck slides on ice at constant velocity. What is the net force acting on the puck?

• equal to its weight

• zero

• less than its weight but more than zero

• depends on the speed of the puck

If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration?  (F=ma)

• The one with a mass of .78 kg will have the greatest acceleration.
• The one with a mass of .52 kg will have the greatest acceleration.
• They will both accelerate at the same rate.

A student pushes a box to right with a force of 10N while a young boy pushes the box to the left with a force of 8N. What is the sum of all forces on the box? 

• 18N left
• 18N right
• 2N right
• 2N left

Unit of mass

• m/s 2
• m/s
• newtons
• kg

Which type of force(s) will cause a change in an object's motion?

• gravity
• zero net force
• balanced forces
• unbalanced forces

What is Newton's First Law known as? The Law of

• Friction
• Mass
• Inertia
• Gravity

Which law is this picture illustrating?

• Law 1

• Law 2

• Law 3

Which one of Newton’s Laws of Motion best explains why the dishes do not move when the table cloth is removed?

• Newton's Law of Inertia
• Newton's Law of F=ma
• Newton's Law of Force Pairs
• Newton's Law of Biology

____ is a force that occurs when an object rubs against another object.

• Motion
• Friction
• Velocity
• Speed