5.3 Energy Review

1. Which of the following describes the speed of an object?

• The car finished the race in 12 minutes.

• The car traveled 11 kilometers in 12 minutes.

• The car crossed the finish line.

• The car did not make it to the finish line.

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A boy is pushing his little sister in a swing. If his father helps push the swing, the increase in force will cause the motion of the swing to —

• accelerate

• change direction

• continue with no change

• remain at rest

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Which of the following best completes this graphic organizer?

• A ball player shooting a basketball

• Forms of energy

• Directions of objects

• Examples of forces

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Two 5th grade students are sitting in a canoe on the water. The weight of the canoe is pushing on the water and the water has an upward force on the canoe. What will most likely happen if another student gets in the canoe?

• The canoe will sink to the bottom of the pond.

• The canoe will rise higher than the water.

• The canoe will go lower in the water.

• The canoe will remain the same.

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Any push or pull that causes an object to move, stop, or change speed or direction is called -

• a force

• kinetic energy

• friction

• the speed

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6. Based on the data recorded in the table, which hypothesis is most likely being tested in this investigation?

• If the surface of the ramp is bumpy, then a car will travel farther.

• If the car has more mass, then it will travel the least distance.

• If the ramp is taller, then a car will travel a greater distance.

• If the ramp is longer, then a car will travel a shorter distance.

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7. What distance would you predict the car to travel if the height of the ramp is raised to 8 centimeters?

• 6.5 cm

• 7 cm

• 7.5 cm

• stay the same

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Which is most likely true of an object at rest?

• It has multiple forces acting on it that add to zero net force.

• It is being held by a force that opposes motion, such as gravity.

• It is resting on a smooth surface with no friction.

• It is experiencing forces that do not sum zero net force.

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Which surface would most likely create the greatest friction when an object moves across it?

• ice

• wet floor

• thick carpet

• wood

According to the data in the table, what best describes the object’s speed?

• The object’s speed increased.

• The object’s speed decreased.

• The object’s speed remained steady.

• The object’s speed doubled after each minute.

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