8th GRADE FINAL EVALUATION

What is movement?

• The action of a force

• A change in the position of an object

• The increase of velocity

• The increase of acceleration

What does the red arrow represent?

• Position of the object

• Distance traveled by the object

• Displacement of the object

• Trajectory of the object

What does the blue arrow represent?

• Position of the object

• Distance traveled by the object

• Displacement of the object

• Trajectory of the object

What type of movement is represented in the picture?

• Straight movement

• Elliptical movement

• Curvilinear movement

• Parabolic movement

What is a frame of reference?

• The trajectory of a moving object.

• The displacement of a moving object.

• A point to determine if an object is moving.

• The distance traveled by a moving object.

Read the situation: "When you're sitting on the bus, you move in relation to an observer (1) that is on the street, but you do not move in relation to another observer (2) who is in the bus." What does this example show about movement?

• That movement is always the same.

• That movement is relative.

• That movement is an absolute magnitude.

• None of them

Read the situation: "When you're sitting on the bus, you move in relation to an observer (1) that is on the street, but you do not move in relation to another observer (2) who is in the bus" What is the point of reference of the observer (1)?

• The bus

• The people in the bus

• The street

• None of them

What does speed measure?

• The change of position of a moving object

  in an instant

• The distance traveled by an object in a given

  time.

• The change of direction of an object

• All of them

What is velocity?

• The change of position of a moving object

  in an instant

• The promptness with which an object moves

• A scalar magnitude

• None of them

What is force?

• Is the trajectory of an object

• Is any agent able to change the state

  of an object.

• Is the displacement of an object

• Is the increase of acceleration of an object