SCIENCE 3RD QA

Which statement BEST describes MOTION?

• It is the change of position with respect of a reference point

• It is when you move around somewhere

• Motion is when you simply walk

• All of the above

What statement BEST describes a REFERENCE POINT?

• Reference point is when you mark the road with "Point A" or "Point B" to know where you're going

• Reference point are physical entities, such as buildings, objects or even people

• Reference point is simply just a point used in Science to refer to something that is unkown

• None of the above.

What are the TWO descriptors of MOTION?

• Displacement and velocity

• Distance and displacement

• Speed and velocity

• Acceleration and distance

What statement BEST describes DISTANCE?

• Distance is the longest route you could take.

• Distance is always in a push or pull movement.

• Distance is how near or far you are from an object or person.

• Distance is the shortest route you could take.

What statement BEST describes DISPLACEMENT?

• Displacement is always in a push or pull movement.

• Displacement is how near or far you are from an object or person.

• Displacement is the longest distance you could take.

• Displacement is the shortest distance you could take.

Scalar or Vector?

• Distance is vector because it has magnitude with unit and direction as well.

• Distance is scalar because it has magnitude only, without direction and unit.

Scalar or Vector?

• Displacement is vector because it has magnitude with unit and direction as well.

• Displacement is scalar because it has magnitude only, without direction and unit.

What is the formula for DISTANCE?

• D = d1 + d2 + d3 . . .

• D = d1 x d2 x d3 . . .

• D= d1 x d2 + d3 . . .

• None of the above

What is the formula for DISPLACEMENT?
(Straight Line)

• D = df - di

• D = df + di

• D = df x di

• None of the above

What is the formula for DISPLACEMENT?
(Diagonal)

• c2 = √a^2 x b^2
  
  (Csquared = Square root of A squared times B squared)

• d = √d1^2 x d2^2
  
  (Displacement = Square root of distance 1 squared times distance 2 squared)

• d = di^2 x df^3
  
  (Displacement = Initial distance squared times final distance cubed)

• None of the above