newton second law

According to Newton’s second law of motion, if force remains the same but mass increases, then acceleration will

• increase

• decreases

• remain constant

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NGSS.MS-PS2-2

Inertia is the resistance of an object to a change in its

• gravity

• motion

• mass

• balanced force

Compared to a 1kg block of solid iron, a 2kg block of solid iron has twice as much

• inertia

• mass

• volume

• all previous answers

An object weighs 30N on earth. A second object weighs 30N on the moon. Which the greater mass? (Note: due to its size, the moon has less gravity than the earth.)

• Object on moon

• Object on earth

• same mass

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NGSS.MS-PS2-4

An object is propelled along a straight-line path by a force. If the net force were doubled, its acceleration would

• Halve

• Double

• Remain constant

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NGSS.HS-PS2-1

The force of friction on a sliding object is 10 newtons. The applied force needed to maintain a constant velocity is

• Less than 10N

• More than 10N

• 10N

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NGSS.HS-PS2-1

A 10kg block with an initial velocity of 10m/s slides 10m across a horizontal surface and comes to rest. It takes the block 2 seconds to stop. The stopping force acting on the block is about

• 5N

• 10N

• 25N

• 50N

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NGSS.HS-PS2-1

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A hockey puck is set in motion across a frozen pond. If ice friction and air resistance are neglected, the forced required to keep the puck sliding at constant velocity is

• Equal to the weight of the puck

• The weight of the puck divided by the mass of the puck

• The mass of the puck multiplied by 9.8 m/s

• Zero newtons

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NGSS.MS-PS2-2

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
(F= M x A) 

• 50N

• 100N

• 5N

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NGSS.MS-PS2-2

What is inertia?

• he opposing force of gravity.

• Another name for unbalanced forces.

• The tendency of an object to continue doing what it is currently doing.

• The mass of an object.