Friction
Newton's Laws
Interactions
Calculations
Force Diagrams
100

This type of friction prevents an object from moving.

What is static friction?

100

This is the relationship between force and acceleration in Newton's Second law.

What is direct?

100

Another word for interaction is this.

What is force?

100

The net force necessary to accelerate a 2 kg block 5 m/s/s.

What is 10 N?

100

This force acts on all objects.

What is gravitational force?

200

This type of friction acts on an object who's surface is moving against another surface.

What is kinetic friction?

200

This is the relationship between mass and acceleration according to Newton's 2nd Law.

What is inverse?

200

A book rests on a table top.  The book has a "normal force" acting on it.  This is the reaction force to this normal force.

What is the table feels a normal force downwards from the book's surface

200

The weight of a 5 kg block.

What is 50 N?

200

This force is caused by two objects pressing against each other.

What is normal force?

300

This is the type of friction that a football might encounter after it is thrown.

What is air resistance?

300

This word is used to describe how hard it is to change an objects motion.

What is inertia?

300

This is the force that causes you to move forward when you walk.

What is friction?

300

Nelly Newton is hanging from two strings (one in each hand).  She has a mass of 30 kg.  This is the tension in each string.

What is 150 N?

300

This force always acts parallel to the surface.

What is friction?

400
The friction between two solid surfaces depends on how hard the surfaces are pushing against each other and this.

What is the characteristics of the surface?

400

What do we call a force interaction that act on two different objects, but are equal and opposite?

action-reaction pairs

400

A book rests on a table top.  This is the reaction force to the gravitational force pulling down on the book.

What is the book pulls the Earth towards it?

400

Hanz and Franz are playing tug-o-war.  Each one pulls with a force of 1500 N.  This is the tension in the rope.

What is 1500 N?

400

This type of force is never drawn on a free body diagram (force diagram).

What is net force?

500

Friction always acts in this direction.

What is . . . . this is a trick question!  You have to look at each case individually.

500

Isaac Newton lived here when he made his most noteworthy discoveries.

What is Cambridge, England?  (While he was studying at Trinity College)

500

The four fundamental force interactions are gravitational force, and these three forces.

What is electromagnetic force, strong force, and weak force?

500

This is another name for a kgm/s/s.

What is a Newton?

500

For an object accelerating downwards, the normal force cannot be _____________ .

What is greater than the weight of the object?