Laws of Motion

This is capable of changing the state of motion of an object and the push and pull acting on interacting objects.

• Motion

• Force

• Work

• Inertia

It is a force that is applied to an object by a person or another object.

• Normal Force

• Tensional Force

• Applied Force

• Frictional Force

Which of the following statements are INCORRECT about what can forces do to produce changes in motion.

• An object at rest starts to move

• An object in motion stops

• An object at motion changes direction

• An object at rest changes speed

This law states that a body at rest remains at rest, and a body already in motion continues to be in motion with a constant velocity in the absence of an unbalanced applied force.

• Law of Force

• Law of Acceleration

• Law of Interaction

• Law of Inertia

It is the natural tendency of an object to remain at rest.

• Inertia

• Force

• Motion

• Work

Which of the following situations represent of law of inertia?

• A truck that has a more powerful engine than a small compact car

• The heavy cart should be pushed harder to increased acceleration.

• The bicycle with two persons moved slowly.

• The passenger tends to move forward when the car suddenly stops.

Which of the following is the unit of force?

• kg

• $\frac{m}{s^2}$

• N

• J

The acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to __________ of the object.

What unknown variable is used to solved this formula? $\left(?\right)\ =\ \frac{F}{m}$  

A 3.5 kg papaya is pushed across a table. If the acceleration of the papaya is 2.2 m/s², what is the net external force exerted on the papaya?