Forces Pre-Test 4.6D

Students rolled a baseball down a ramp and measured the distance it traveled on three different surfaces.What question could they be trying to answer?

• Why do baseballs stop after rolling down a ramp

• How does friction change how far a baseball rolls

• How does a baseball stop rolling on a flat surface

• Which kind of ball rolls the furthest down a ramp

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?

• Temperature

• Sound

• Gravity

• Magnetism

Students are conducting an investigation that tests the force of a magnet by using one magnet to repel a second magnet. Which tool would be needed to measure the distance the second magnet moves?

• A thermometer

• A spring scale

• A ruler

• A compass

Students performed an experiment in which they rolled toy cars with different masses down the same ramp three times.Which testable question could the students be investigating?

• Does the surface of a ramp affect the distance a toy car travels?

• How is a toy car affected by the attraction of magnets?

• Does the mass of a toy car affect the distance it travels?

• How does ramp height affect the distance a toy car travels?

Which group of items could be used to investigate the strength of different magnets?

• Magnets, pennies, ruler

• Magnets, iron nails, triple beam balance

• Magnets, hand lens, graduated cylinder

• Magnets, water, aluminum foil