science target HW Anas

what is the third law of newton

• for every action there is an equal and opposite reaction

• every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.

• the law of acceleration (acceleration = force/mass)

if we multiply distance and time we get

which forces are contact forces

• friction

• air resistance

• water resistance

• magnetic

what can gravity also be known as

• weight

• power

• speed

• falling

which few of these are non contact forces

• gravity

• magnetic

• electrostatic

• friction

to get how fast something is going we need to ...

• time x distance

• distance x time

• distance / time

• time / distance

if a dog goes 12 km in 1 hour what is its speed

• 2 kmph

• 0.2 kmph

• 200 mph

• 20 kmph

if 2 thing are going the same way we ...

• (x-y) m/s

• (y-x) m/s

• (x+y) m/s

• (y+x) m/s

how do we calculate if they run opposite directions

• (x+y) m/s

• (x-y) m/s

• (y+x) m/s

• (y+x) m/s

What is the Hooke's Law in simple terms?

• the strain of the material is proportional to the applied stress within the elastic limit of that material.

• weight can change elasticity of some things

• there never was a hooks law

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