Física Anos 7–9

Gr9-W6-L1

Compartilhado por Amro Abdoun há 1 hora 4 P Adotado 0 vezes

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A car is at position +5 m from the origin. If the origin is moved 3 m to the right (positive direction), what is the car's new position?

A -2 m

B +8 m

C +2 m

D +5 m

Which of the following best explains why an object's coordinate value can change even though its actual location does not?

A Because the object moves to a new location

B Because the coordinate value depends on the chosen origin and positive direction

C Because the coordinate system is always fixed

D Because the unit of measurement changes

A cyclist starts at position -4 m and ends at position +6 m. What is the cyclist's displacement?

A +2 m

B -2 m

C +10 m

D -10 m

If a coordinate system has its origin at the left end of a track and the positive direction to the right, what is the position of an object 3 meters to the left of the origin?

A +3 m

B 0 m

C -3 m

D 3 m to the right

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