Newtons laws of motion

Multiple Choice

What is Newton's first law of motion?

• Every object will remain at rest or in uniform motion in a straight line.

• I don't know

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

• An object accelerates when a force acts on an object with mass.

  The greater the mass of the object being accelerated, the more

  force needed to accelerate the object.

Multiple Choice

What is Newton's third law of motion?

• An object accelerates when a force acts on an object with mass. The greater the mass of the object being accelerated, the more force needed to accelerate the object.

• Every object will remain at rest or in uniform motion in a straight line.

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

Multiple Choice

What is Newton's second law of motion?

• An object accelerates when a force acts on an object with mass.

  The greater the mass of the object being accelerated, the more

  force needed to accelerate the object.

• Law of Inertia.

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

• Newton's first law states that every object will remain at rest or in uniform motion in a straight line.

Multiple Choice

What is another name for Newton's first law

• Law of mass.

• Law of inertia.

Multiple Select

A soccer ball with a mass of 4.5 kg accelerates at a rate of 3.2 m/s^2. What is the force applied to the soccer ball?

• F=ma F=3.2x4.5=14.4N

• F=ma F=4.5x3.2=14.4N

• 4.5x3.2=13.4

• 4.5x3.2=15.4N

Multiple Choice

Define friction. What are the different types of friction?

• Force opposing the motion of the object, static friction-between stational objects.

• It is the force of the object

Multiple Choice

If a force of 200N was applied to the car, and assuming no other forces were between point 0 and point A, what is the mass of the car?

• 200N=mx4 500Kg

• 200Kg=4xm=500N

Multiple Choice

Consider two rocks with masses 5 and 20 kg. What is the relationship between their inertia's, masses, and weights on earth.

• The mass, inertia, and weight on earth of the 20kg rock are 4 times greater than the 5kg rock.

• 5 is 4 times greater than 20 kg

Multiple Choice

What factors cause the force of gravity to increase or decrease?

• Mass+distance. Gravity increased when mass increases+distance decreases.

• Mass

• Distance

Multiple Choice

What is the relationship between mass and weight when moving farther away from earth?

• Mass stays the same, weight decreases as you get further from earth.

• Mass changes, weight increases as you get further from earth.

• Nothing changes with mass and weight.