Force and Acceleration

What is Newton's Second Law?

• An object will not change its motion unless a force acts on it.

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

• When two objects interact, they apply forces to each other of equal magnitude and opposite direction.

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NGSS.MS-PS2-2

When two forces act in the same direction on an object, the net force is found by ______________________ forces.

• adding

• opposing

• taking away

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NGSS.MS-PS2-2

Acceleration depends on which two factors?

• mass and position

• net force and mass

• mass and velocity

• position and net force

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NGSS.MS-PS2-2

Lizzie is pushing Alex on a scooter. Lizzie is pushing with 75 N of force to the left, and Alex is helping with 20 N to the left. What is the net force on the scooter?

• 95 N, to the right

• 95 N, to the left

• 55 N, to the right

• 55 N, to the left

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NGSS.MS-PS2-2

How much force is required to accelerate a 1,800 kg truck at 3 m/s²? _____ Newtons

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NGSS.MS-PS2-2

A force of 52 N acts upon a 4 kg block sitting on the ground. Calculate the acceleration of the object. ____ m/s²

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NGSS.MS-PS2-2

A 5 kg block is pulled across a table by a force of 61 N. Calculate the acceleration of the object. _____ m/s²

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NGSS.MS-PS2-2

What is the mass of an object if a force of 18 N causes it to accelerate at a rate of 1.5 m/s²? _____ kg

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NGSS.MS-PS2-2

A student uses a magnet to move a 0.025 kg metal ball. The magnet exerts a force of 5 N, which causes the ball to begin moving. What is the acceleration of the ball when it begins to move? ____ m/s²

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NGSS.MS-PS2-2

The image shows a block that is being pulled along the floor. According to the image, what is the acceleration of the block? ____ m/s²

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NGSS.MS-PS2-2