PHYSICS-- CBA #2 Review

Change from standard form to scientific notation

0.000398

Inertia can best be described as ______

• the force which keeps moving and stationary objects at rest

• the willingness of an object to eventually lose its motion

• the force which causes all objects to stop

• the tendency of any object to resist change and keep doing whatever it is doing

Tags

NGSS.MS-PS2-1

Name the following law.... "For every action, there is an equal and opposite reaction."

• Newtons 1st Law

• Law of Conservation of Energy

• Law of Gravitational

• Newtons 3rd Law

Tags

NGSS.MS-PS2-1

A .50-kg toy car experiences a net force of 3.0 N while slowing down to a complete stop. What is the acceleration of the toy car?

(a=F/m)

• 1.5 m/s

• 150 m/s

Tags

NGSS.MS-PS2-2

A change in velocity over time is _____

• 360 N

• 280 N

• 25,000 N

• 0 N

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Which would fall with greater acceleration in a vacuum -- a leaf or a stone?

• the leaf

• need more information

• the stone

• they would accelerate at the same rate

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The mass of an object decreases as it moves away from Earth

• True

• False

• Both are correct

A garden tractor drags a plow with a force of 750 newtons at a distance of 10 meters in 20 seconds. How much work is done?

(W=Fxd)

• 5000 joules

• 7500 joules

• 15,000 joules

• 250 joules

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5