Force 5.6D

Robert built a ramp to determine the average distance his toy car will travel when released down the ramp. Which experiment will best test HOW FAR his toy car will travel when released down the ramp?

• one that measures the distances that DIFFERENT toy cars travel in MANY trials
• one that measures the distances that DIFFERENT toy cars travel in TWO trials
• One that measures the distances that HIS toy car travels in MANY trials
• One that measures the distances that HIS toy car travels in TWO trials

The Cool Kids table designed a tabletop bumper car model to test the effects of  different forces. They used several of the same toy cars to represent the bumper cars and a cardboard box to represent the bumper car arena. They used a rubber mat, a plastic folder, and paper towel to LINE THE BOTTOM OF THE BOX.  Which question is this investigation most likely designed to answer?

• How does the AMOUNT of force affect how many bumper cars will GET HIT?
• How does the SIZE of the car affect how much force is needed to MOVE IT?
• How does the MATERIAL on the bottom of the box affect how FAR the cars will MOVE?
• How does the AMOUNT of force affect how long the cars will CONTINUE TO MOVE?

Jax designed an experiment of two boxes with EQUAL weights. He decided to add 50 grams to the RIGHT side to see what would happen. The LEFT side of the moved up 1 meter.  What should Jax do to determine whether the force from the extra WEIGHT IS ENOUGH to move the left side of up by 1 meter?

• Test by REMOVING weight from the RIGHT side of the pulley system in THREE trials.
• Test by ADDING increasing amounts of weight to the RIGHT side in MANY trials.
• Test by ADDING 50 grams to the RIGHT side of the pulley system in MANY trials
• Test by ADDING 50 grams to the RIGHT side of the pulley system in ONE trial

Odin wants to know the maximum distance a toy car will travel when he gives it a strong push. Which experiment below best allows Odin to determine this?

• One that involves pushing the SAME toy car, with the SAME force, MANY times on the SAME surface
• One  that involves pushing TWO  toy cars, with the SAME force, FIVE times on the SAME surface
• One that involves pushing the SAME toy car, with a DIFFERENT force, MANY times on TWO different surfaces
• One that involves pushing TWO different toy cars, with a DIFFERENT force, FIVE times on TWO different surfaces

Abby wants to see how high a tennis ball will bounce when she drops it from a height of 10ft. When her teacher gives her permission, Abby climbs a ladder to perform the experiment. Which experiment best tests HOW HIGH the tennis ball will bounce when released from 10ft?

• drops many DIFFERENT tennis balls from 10FT, ALL at the SAME time, and records which ball bounces the LOWEST.
• drops many IDENTICAL tennis balls from 10 FT, ALL at the SAME time, and records which ball bounces the HIGHEST.
• drops many IDENTICAL tennis balls from 10FT, ONE at a time, and records HOW HIGH EACH ball bounces.
• drops MANY different tennis balls from 10FT, ONE at a time, and records HOW HIGH EACH ball bounces.