Newton's Laws - Concept 3- Notes

What is force measured in?

Can more than one force act on an object at the same time?

• Yes, and the forces can be combined.

• No, only one force can act at a time.

• Yes, but the forces cancel each other out.

• No, forces are always isolated events.

What are balanced forces?

• Forces that cause a change in motion.

• Forces that are unequal in size and direction.

• Forces that are equal in size and opposite in direction.

• Forces that result in a net force greater than 0.

Do balanced forces cause a change in motion?

• Yes, they always cause a change in motion.

• Yes, but only if they are strong enough.

• No, they do not cause a change in motion.

• It depends on the direction of the forces.

What are unbalanced forces?

• Forces that are equal in size and opposite in direction.

• Forces that are not equal in size and opposite in direction.

• Forces that cancel each other out completely.

• Forces that are equal in size and same in direction.

What is the net force acting on the object in the diagram?

• 9 N to the left

• 5 N to the right

• 9 N to the right

• 5 N to the left

What is Newton's 1st Law of Motion?

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

• The force on an object is equal to its mass times the acceleration.

• An object will move at a constant velocity until a net force acts on it.

• The acceleration of an object is directly proportional to the net force.

According to Newton's 1st Law, what will happen to an object in motion if no force acts on it?

• It will come to a stop eventually.

• It will change direction.

• It will stay in motion.

• It will accelerate.

According to Newton's 1st Law, what will happen to an object at rest if no force acts on it?

• It will start moving at a constant velocity.

• It will remain at rest.

• It will eventually move due to natural forces.

• It will accelerate randomly.

What is Newton's 1st Law of Motion also known as?

• The Law of Gravity

• The Law of Inertia

• The Law of Acceleration

• The Law of Energy