Newton's second law

What is Newton's second law of motion?

• For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects

• an object at rest will stay at rest and an object in motion will stay in motion with the same speed and direction unless acted upon by unbalanced force.

• the acceleration of an object depends directly upon the resultant force acting upon the object, and inversely upon the mass of the object.

If you use the same force to push a truck and push a car which one will have more acceleration and why? 

• The truck

• The car because it has less mass

• the car

• The truck because it has more mass 

Tags

NGSS.MS-PS2-2

What's the formula for Newton's second law of motion (Force)?

• F = ma

• F = m - a

• F = a/m

• F = a + m 

Mike's car, which weighs 1,000 kg, is out of gas. Mike is trying to push the car to a gas station, and he makes the car go 0.05 m/s2. Using Newton's Second Law, you can compute how much force Mike is applying to the car

• 50N

• 100N

• 20N

• 5N

Tags

NGSS.MS-PS2-2

True or false? It is easier to kick a beach ball then it is a basketball

• True

• False

Tags

NGSS.MS-PS2-2

 "If we apply a ___________ to an object, its __________________ will change and it will  ______________."

• accelerate, inertia, gravity

• force, accelerate, gravity

• velocity, gravity, inertia

• force, velocity, accelerate

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

 Accelerations are produced by

• velocities.

• forces.

• masses.

• accelerations.

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NGSS.MS-PS2-2

 

Jenny applies a 60 N force to a 20 Kg cart, what is the acceleration of the cart if friction can be neglected?

• 0.33m/s2

• 20m/s2

• 1200m/s2

• 3m/s2

Tags

NGSS.MS-PS2-2

What is the net force?

• 40N left

• 40N right

• 0N balanced

Tags

NGSS.MS-PS2-2

True or false? It is harder to pull a puppy then it is to pull a dog

• True

• False

Tags

NGSS.MS-PS2-2