3rd Periodical Exam in Science 4

Which of the following objects is more likely to change shape when squeezed?

• Glass bottle

• Rubber ball

• Metal rod

• Wooden block

What happens when you apply force to a soft clay ball?

• It breaks into smaller pieces.

• Its shape changes.

• It moves faster.

• It remains the same.

What change occurs when you stretch a rubber band?

• Changing its size.

• Changing its shape.

• Changing its direction.

• Changing its speed.

Consider designing a model that uses twisted wires. What effect would twisting the wire have on your design?

• Change its shape.

• Become shorter.

• Straighten completely.

• Remain unaffected.

What tool is used to measure the distance an object moves?

• Stopwatch

• Ruler

• Thermometer

• Magnet

When assessing the duration of an event, which unit provides the most precise measurement?

• Kilograms

• Seconds

• Meters

• Liters

What is a stopwatch used to measure?

• Temperature.

• Time.

• Distance.

• Speed.

To measure the distance traveled by a car, what tool or method would you use?

• A magnet.

• A thermometer.

• A measuring tape.

• A stopwatch.

What is the formula for speed?

• Distance ÷ Time

• Distance × Time

• Time ÷ Distance

• Speed × Distance

A car travels 60 kilometers in 2 hours. Which method would you use to calculate its speed?

• Multiply the distance by the time

• Divide the time by the distance

• Divide the distance by the time

• Add the distance and time together