Chapter 4 Practice Quiz

What are these two men creating?

• They are creating a balanced force to make the car move.

• They are not making the couch move.

• They are creating an unbalanced force, which will result in the car moving.

• They are making a magnetic force.

The table in this picture pushes up on the book while gravity pulls it down. The two forces have equal magnitude, but work in opposing directions; They are …

• Unbalanced

• Balanced

• Repelling

• Attracting

When something is not changing, Scientists say that it is __________.

• Stable

• Unstable

• Moving

• Not moving

Tags

CCSS.L.3.4A

CCSS.RI.3.4

When forces exerted on an object are balanced, the objects...

• Repelling force

• Movement does not change.

• Movement changes

• A balanced force

An __________________________ happens when multiple forces of unequal strength act on an object.

• Balanced force

• Equal force

• Static force

• Unbalanced force

A ______ is when multiple forces of equal strength act on an object?

• Pattern

• Design

• Balanced Force

• Magnetic Force

Two forces can be exerted on an object at the same time.

• True

• False

What makes the floating train start to rise off of the tracks?

• Gravity, an attracting force between the train and Earth.

• Repelling magnetic forces between the magnet in the train and one in the tracks.

• The train falls down onto the tracks.

• The train rises up off the tracks.

Tags

CCSS.RI.3.4

Which of the following represents unbalanced forces?

• Coach Grey and Coach Hostetler are both pushing a ball on opposite sides.

• Coach Grey and Coach Hostetler are trying to roll a cart but pushing on opposite sides.

• Coach Grey and Coach Hostetler are on opposite ends of a rope and both pulling on a rope (think tug of war).

• Coach Grey and Coach Hostetler are both pushing a ball on opposite sides.

What makes the floating train fall back down onto the tracks?

• Gravity, an attracting force between the train and Earth.

• Wind forces that are moving.

• Electric forces are falling to the ground.

• Repelling magnetic forces between a magnet in the train and one in the tracks.

Tags

CCSS.RI.3.4