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- 1. Multiple ChoiceWhat do sports engineers do once they identify a problem in a sport?They change the rules in the sport.They come up with a model that solves it.They look for problems in a different sport.They ask other engineers their opinions about the problem.
- 2. Multiple ChoiceWhat does the diagram in the MORE BOUNCE TO THE BALL section of the article show?how the first tennis ball lookedthe steps in making a tennis ballhow high a tennis ball can bouncewhat a broken tennis ball looks like
- 3. Multiple ChoiceHow were tennis rackets FIRST made?from woodfrom metalfrom plastic and rubberfrom many combined materials
- 4. Multiple ChoiceHow does the author organize the second paragraph of section MORE BOUNCE TO THE BALL?by telling about the first tennis ballsby comparing a tennis ball to other types of ballsbe describing the way rubber has improved over the yearssteps to make a tennis ball in the order they happen
- 5. Multiple ChoiceWhy was 1975 an important year for the Boston Marathon?It was the first year for the race.It was the first time runners ran on a track.An athlete in a wheelchair won the race.They have longer spikes on the soles.
- 6. Multiple ChoiceAccording to the section "A History of Running Shoes," which is the CORRECT order these were used?sandals, running shoes wiht spikes, rubber sneakers, barefootbarefoot, sandals, rubber sneakers, running shoes with spikesbarefoot, sandals, running shoes with spikes, rubber sneakerssandals, barefoot, running shoes with spikes, rubber sneakers
- 7. Multiple ChoiceHow are long jumpers' shoes DIFFERENT from other runners' shoes?They have extra rubber supports.They have spikes in the front only.They have cleats instead of spikes.They have longer spikes on the soles.
- 8. Multiple ChoiceWhat change in the soles of running shoes was made in 1972?Foam was used.Rubber was used.Spikes were added.Air bubbles were put inside.
- 9. Multiple ChoiceWhat was the LAST thing added to football helmets?a face maskmore plasticextra paddinga computer chip
- 10. Multiple ChoiceWhat are special safety features in skiers' clothing used for?to make skiers ski fasterto makee skiers' clothing glow in the darkto help find the skiers' locationto help skiers' change direction while skiing
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