Unit 4 Review

Two horses are pulling a cart in

opposite directions. The cart begins

to move in the direction shown.

The movement of the cart provides

evidence for which of the following?

Students wanted to investigate if water balloons dropped from greater heights

made larger splatters. This experiment is an investigation of the effect of which of

the following?

Students are investigating the effect of different surfaces (tile, wood, and

carpet) on the time it takes a toy car to roll two meters. The students are measuring

the effect of which of the following forces?

Students conducted an

investigation in which they rolled

marbles across different surfaces to

measure the effect of the force of

friction on each surface.

Friction slows down and stops

objects. Which of the surfaces

investigated showed the greatest

amount of friction?

Toy cars have magnets attached, as shown. One car is placed behind another. In which arrangement would the front car be pushed forward by magnetic force?

Which of the following describes the best way to investigate the strength of several different magnets?