Force

Question 1

Newton’s 1st Law of Thermodynamics (Law of Inertia) states ____

Answer 1

Newton’s 1st Law of Thermodynamics (Law of Inertia) states an object in a state of rest or in a state of motion will tend to remain in that state unless acted upon by a force

Question 2

Newton’s 2nd Law of Thermodynamics states: ____

Answer 2

Newton’s 2nd Law of Thermodynamics states: F = ma

Question 3

Newton’s 3rd Law of Thermodynamics states ____

Answer 3

Newton’s 3rd Law of Thermodynamics states for every action there is an equal and opposite reaction

Question 4

Friction ____ the relative motion between surfaces

Answer 4

Friction OPPOSES the relative motion between surfaces

Question 5

Frictional forces are ____ to the contact surface

Answer 5

Frictional forces are PARALLEL to the contact surface

Question 6

Static friction (f𖾗) is friction that acts on objects that are ____

Answer 6

Static friction (f𖾗) is friction that acts on objects that are NOT MOVING

Question 7

Static friction prevents objects from ____

Answer 7

Static friction prevents objects from MOVING

Question 8

The equation for static friction is: ____

Unit: ____

Answer 8

The equation for static friction is: f𖾗 ≤ µ𖾗Fⁿ

Unit: NO UNIT

Question 9

Kinetic friction (fᴷ) is friction that acts on objects that are ____

Answer 9

Kinetic friction (fᴷ) is friction that acts on objects that are IN MOTION

Question 10

The equation for kinetic friction is: ____

Unit: ____

Answer 10

The equation for kinetic friction is: fᴷ = µᴷFⁿ

Unit: NO UNIT

Question 11

For any surface there are ____ coefficients of friction (____)

Answer 11

For any surface there are 2 coefficients of friction (f𖾗 AND fk)

Question 12

For any surface, ____ friction has a higher coefficient of friction value than ____ friction

Answer 12

For any surface, STATIC friction has a higher coefficient of friction value than KINETIC friction