Newton's Laws of Physics

Which direction will the force move this object? And with how much force?

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NGSS.MS-PS2-4

What is Newton's 2nd Law?

• Every action has an equal and opposite reaction

• An object at rest stays at rest, an object in motion stays in motion.

• F = ma

• Friction

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NGSS.HS-PS2-1

If the man pushes with an equal amount of force, which object will accelerate more?

• Car because it has more mass

• Lawnmower because it has less mass

• Car because it has less mass

• Lawnmower because it has more mass

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A force of 90N is applied to each cart below, which one will accelerate the fastest?

• Cart 1

• Cart 2

• Cart 3 

• Cart 4

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NGSS.MS-PS2-2

Find how much force the man will need to exert to move the car.

• 5000 N

• 50 N

• 20,000 N

• 500 N

Tags

NGSS.MS-PS2-2

If the net force is equal to zero, the forces acting on the object are

• balanced and in equilibrium

• unbalanced and are NOT in equilibrium

What happens when unbalanced forces act on an object at rest?

• the object remains at rest

• the object begins moving in an unpredictable direction

• the object begins moving in the direction of the net force

• the object begins moving opposite to the direction of net force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.

• 20N

• 10N

• 40N

• 70N

Tags

NGSS.MS-PS2-1

A cart of mass 4.0 kg is being pulled with a force of 24 N. The cart accelerates at 3.0m s^–2. An unknown friction force also acts on the cart. What is the net force on the cart?

• 6.0 N

• 8.0 N

• 12 N

• 24 N

Tags

NGSS.MS-PS2-2

An object has a mass of 30 kg and an acceleration of 2 m/s^2. What must be the net force on the object?

• 60 N

• 45 N

• 15 N

• 0.067 N

Tags

NGSS.MS-PS2-2