physics midterm review

What is the Formula for speed?

• s=t/d

• s=2dt

• s=d/t

• s=td/2

how are acceleration and velocity related?

• acceleration is the rate of change of velocity in time.

• time is the rate of change in velocity in acceleration.

• they are not related.

• they are the same thing.

is a car stopping for a red light accelerating?

• yes, because its changing its velocity.

• no because its slowing down.

• yes, because its a car and all cars accelerate

• no because stopping is not moving, which means no acceleratio n.

Tags

NGSS.HS-PS2-1

what is the acceleration of a car that travels in a straight line at a constant speed of 100km/hr?

• 0km/hr

• 50km/hr

• 100km/hr

• cannot know with just the information given.

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NGSS.HS-PS2-1

what is the equation for horizontal projectile motion?

• v=td

• v=d/t

• v=gt

• v=dt/2

when calculating vertical components of projectile motion which equations do you use? select all that apply.

• d=1/2gt^2

• v=gt

• t=(sqroot)2d/g

• v=d/t

how are mass and inertia related?

• directly proportional

• inversely proportional

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NGSS.HS-PS2-1

what is the difference between mass and weight?

• mass=gravity on the mass

  weight=matter

• they are the same thing.

• mass=matter

  weight=gravity on the mass

• mass is weight and height combined.

how does mass affect acceleration?

• when one grows, the other shrinks, inversely

• directly proportional

• it doesn't affect it.

• mass will always make the acceleration faster.

Tags

NGSS.HS-PS2-1

if an object is not accelerating, does that mean there are no forces acting on it?

• yes, acceleration is the only thing acting on an object.

• no, gravity will be acting on it.

Tags

NGSS.HS-PS2-1