Science Performance Task Semester Review

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. It depends on the mass of the object and the speed at which it is moving.

Front

How can you increase the kinetic energy of an object?

Back

You can increase the kinetic energy of an object by increasing its mass or increasing its speed.

Front

What is the relationship between the height of a ramp and the kinetic energy of a rolling object?

Back

The higher the ramp, the more potential energy the object has, which converts to kinetic energy as it rolls down.

Front

What is a hypothesis in scientific experiments?

Back

A hypothesis is a testable prediction about the relationship between two or more variables.

Front

What is the purpose of conducting multiple trials in an experiment?

Back

Conducting multiple trials helps to ensure the reliability and accuracy of the results.

Front

What is the effect of adding weight to a toy truck on its kinetic energy?

Back

Adding weight to the toy truck increases its kinetic energy when it is in motion.

Front

What does it mean for two magnets to have a field of repulsion?

Back

A field of repulsion occurs when like poles of two magnets (north-north or south-south) are facing each other, causing them to push away from each other.

Front

What is the significance of using a control variable in an experiment?

Back

A control variable is kept constant to ensure that the results are due to the independent variable being tested.

Front

What is friction and how does it affect motion?

Back

Friction is a force that opposes motion between two surfaces in contact. It can slow down or stop moving objects.

Front

What is the role of data collection in scientific experiments?

Back

Data collection is essential for analyzing results, drawing conclusions, and validating or refuting a hypothesis.