Forces and Motion Quiz

This force slows or stops motion

• Magnetism

• Friction

• Push

• Gravity

The two pictures show part of an investigation. A magnet, a book, and a paperclip are on a sheet of lined paper. In Picture 1 a student slides a magnet closer to the book. The student holds the book still in both pictures. Which statement about this investigation can be supported by the result shown?

• The magnet pulled the book closer to it.

• The magnet pushed the paperclip away.

• The magnet pulled the paperclip closer.

• The magnet caused no changes to the position of the objects.

A student uses a spring scale to pull a 50-gram block horizontally across a wood desk. Then the student pulls the block the same distance across surfaces of carpet, sandpaper, and glass. What forces make the block difficult to move? Select two correct answers.

• Gravity

• Magnetism

• Friction

• Pull from the spring scale

What force causes the ball to drop in this picture?

• Gravity

• Magnetism

• Friction

• No force needed.

Two equal forces act at the same time on the same object but in opposite directions. Which statement describes the object's motion?

• The object changes direction.

• The object does not move.

• The object increases its speed.

• The object starts to move.

Two football linemen push against each other in practice. They do not move, but then lineman B moves forward and lineman A moves backward. Why does this happen?

• Because the two linemen push equally in opposite directions and the forces cancel each other.

• Lineman A is pushing with a greater force than Lineman B.

• The forces were equal, but then Lineman B exerted more force, causing the forces to be unbalanced.

• Lineman B exerted less force than Lineman A.