FORCE

Who formulated the three Laws of Motion?

• Aristotle

• Isaac Newton

• Thomas Edison

• Alexander Graham Bell

Which has more mass, a kilogram of cotton or a kilogram of iron?

• the iron

• the cotton

• they both have the same mass

• cannot be determined from the given information

Which has the greatest inertia?

• airplane

• car

• jeepney

• bike

Which of these vehicles moving at the same velocity is difficult to stop?

• a bus

• a car

• a train

• a truck

All of the following apply the third law of motion EXCEPT_____.

• kicking a ball

• rowing a banca

• throwing a stone

• taking out ketchup rom a bottle

Which of the following statements are true?

I. Action and reaction forces occur in pair.

II. Action and reaction forces act on the same object.

III. Action and reaction forces can occur one at a time.

IV. Action and reaction forces have the same magnitude.

• I and II

• I and IV

• II and III

• II and IV

Which Newton's law explains when a man is pushed forward in the car as it stops?

• 1st law

• 2nd law

• 3rd law

• 2nd and 3rd laws

In Newton's first law of motion, a moving object that is not acted upon by a net force will _____________.

• accelerate

• change its velocity

• eventually come to stop

• continue moving at constant velocity

A boy jumps out of the boat into a dock. As the boy moves forward to the dock, the boat moves backward. Which statement describes this situation?

• An object at rest remains at rest.

• Friction opposes the motion of an object.

• For every action, there is an equal and opposite reaction.

• The net force is directly proportional to mass and inversely proportional to acceleration.

Two balls are simultaneously applied with a force of 20N. One ball has a mass of 0.3 kg and the other has 0.4 kg. Which ball has greater acceleration?

• They will both accelerate at the same rate.

• None of them will accelerate greater than the other.

• The one with a mass of 0.3 kg has the greater acceleration.

• The one with a mass of 0.4 kg has the greater acceleration.