Science 5 Quarter 3 Reviewer

Which instrument is typically used to measure the distance traveled by an object?

• Compass

• Ruler

• Stopwatch

• Thermometer

Which of the following best describes the motion of an object?

• The color of an object changes over time.

• The shape of an object changes over time.

• The object remains stationary at all times.

• The position of an object changes relative to a reference point.

A toy car travels 20 meters in 4 seconds. What is its average speed?

• 4 m/s

• 5 m/s

• 8 m/s

• 10 m/s

If a person jogged 30 meters forward and then walked back 10 meters, what is the total distance traveled?

• 10 meters

• 20 meters

• 30 meters

• 40 meters

A graph shows the position of a runner over time. Between 0 to 5 seconds, the runner's position changes from 0 meters to 25 meters. Between 5 to 10 seconds, the position remains at 25 meters. What can you infer about the runner's motion during these time intervals?

• The runner is stationary throughout.

• The runner is accelerating throughout.

• The runner is slowing down and then speeds up.

• The runner is moving at a constant speed and then stops.

A cyclist travels 10 meters east, then 15 meters west, and finally 5 meters east. What is the total distance traveled and the displacement of the cyclist?

• 30 meters; 0 meters

• 30 meters; 10 meters west

• 25 meters; 0 meters

• 25 meters; 5 meters east

Two objects, A and B, are moving along a straight track. Object A travels 50 meters in 10 seconds, while object B travels 60 meters in the same amount of time. Which object has a greater average speed, and by how much?

• Object A; by 5 m/s

• Object B; by 1 m/s

• Object B; by 0.5 m/s

• Both have the same average speed.

Diane observes the motion of a toy train and creates a distance vs. time graph. The graph shows a straight diagonal line. Jamie concludes that the train's speed is increasing. What suggestion would you give Jamie about their conclusion?

• A. Jamie should revise their conclusion because a straight line on a distance-time graph shows constant speed.

• Jamie should add more points to the graph to verify if the train's speed is really increasing.

• Jamie's conclusion is correct because a straight line means the train is accelerating.

• Jamie's graph is incorrect and should show a curved line for increasing speed.

Which material is the best conductor of heat and electricity?

• Wood

• Rubber

• Copper

• Plastic

Why are metals like copper and aluminum good conductors of electricity?

• They are shiny.

• They do not get hot easily.

• They are soft and easy to bend.

• They allow electricity to flow easily.