Newton's Laws

Question 1

Newton’s First Law

Answer 1

An object will continue in its state of motion unless compelled to change by a force impressed upon it

Question 2

Newton’s Second Law

Answer 2

Acceleration is produced when a force acts on a mass

Question 3

Newton’s Third Law

Answer 3

2 objects must interact for a force to exist; for every action there is an equal opposite reaction

Question 4

Law of Gravitation

Answer 4

Any 2 objects in the universe exert an attractive force on each other

Question 5

Weight

Answer 5

Gravitational force exerted on an object by Earth

Changes with location

Question 6

Normal force

Answer 6

The component of contact force that’s perpendicular to the surface

Question 7

Friction force

Answer 7

Component of contact force that’s parallel to the surface

Question 8

Static friction

Answer 8

When pushing an object

It’s the force that act on an object to cancel out initial pushes

Question 9

Kinetic friction

Answer 9

Force that acts on object as it slides across a floor

Question 10

Coefficient of friction

Answer 10

The nature of the surface, the greater this number is, the stronger the friction will be

Question 11

Pulleys

Answer 11

Devices that change the direction of tension force in cords that slide over them