Physics: Forces and Newton's laws

Inertia refers to the...

• natural tendency of objects to remain at a constant velocity unless acted on by a force

• natural force of objects to remain at a constant velocity unless acted on by a force

• natural tendency of objects to decrease in velocity unless acted on by a force

• natural tendency of forces to remain at a constant velocity unless acted on by another object

Inertia explains...

• Why stationary objects stay stationary

• Why objects moving in space have a constant velocity

Is inertia a force?

• yes

• no

If a car is moving at a constant force then due to its inertia it will tend to

• Speed up

• Slow down

• Change direction

• Continue unchanged

Inertia is a the tendency for objects to maintain a constant

• acceleration

• shape

• position

• velocity

First law of motion states that

• An object will maintain is a constant velocity unless acted on by an unbalanced force

• An object will maintain is a constant acceleration unless acted on by an unbalanced force

• An object will maintain is a constant velocity unless acted on by an balanced force

• An object will maintain is a constant inertia unless acted on by an balanced force

An object with zero net force

• remains at rest

• changes in direction

• increases on velocity

An object with zero net force

• remains at a constant velocity

• changes in direction

• decreases in acceleration

For an object to accelerate it

• it must have a force applied to it

• all forces on it must remain balanced

• it can only changed direction

• It can only increase in velocity

The force objects experience as they rub against each other is called

• Friction

• Air resistance

• water resistance

• Gravity