NEWTON’S LAWS
OF
MOTION
, KINDS OF FORCES
CONTACT FORCES NON-CONTACT FORCES
-Applied force -gravitational force
-Normal force -magnetic forces
-Frictional force -electrostatic forces
- Static frictional force
-kinetic frictional force
, NEWTON FIRST LAW
• DEF: a body will remain in its state of rest/motion at constant velocity, unless a non-zero net
force acts on it.
• When the net force equals zero the forces are in equilibrium, or they counterbalance each
other. The object then maintains its state of rest/ motion.
• Inertia= the property of a body that enables it to resist change in its state of motion. The
greater the mass of a body, the greater its inertia.
• EG: a bus full of passengers is more difficult to come to a stop than an empty bus
*application of Newton 1
*importance of safety belts
OF
MOTION
, KINDS OF FORCES
CONTACT FORCES NON-CONTACT FORCES
-Applied force -gravitational force
-Normal force -magnetic forces
-Frictional force -electrostatic forces
- Static frictional force
-kinetic frictional force
, NEWTON FIRST LAW
• DEF: a body will remain in its state of rest/motion at constant velocity, unless a non-zero net
force acts on it.
• When the net force equals zero the forces are in equilibrium, or they counterbalance each
other. The object then maintains its state of rest/ motion.
• Inertia= the property of a body that enables it to resist change in its state of motion. The
greater the mass of a body, the greater its inertia.
• EG: a bus full of passengers is more difficult to come to a stop than an empty bus
*application of Newton 1
*importance of safety belts
