Physics Quiz

What is meant by the elastic limit of an object?

• The point beyond which an object will not return to its original shape when the force is removed.

• The point at which an object starts to deform.

• The maximum force an object can withstand.

• The point at which an object breaks.

What is Hooke’s law?

• A law that says the force is proportional to the extension.

• A law that states the force is inversely proportional to the extension.

• A law that states the force is proportional to the mass.

• A law that states the force is inversely proportional to the mass.

What is accuracy?

• Results are close to the true value.

• Measurements that are close together.

• The ability to repeat measurements.

• The ability to measure small changes.

What is precision?

• Measurements that are close together.

• Results are close to the true value.

• The ability to measure small changes.

• The ability to repeat measurements.

What is the independent variable in this practical?

• masses

• extension

• spring

• ruler

What is the dependent variable in this practical?

• extension

• masses

• spring

• ruler

What is the control variable in this practical?

• spring

• masses

• extension

• ruler

What piece of equipment is used for measuring length?

• Ruler

• Spring

• Masses

• Extension

How could reliability be improved?

• Repeat each measurement and find anomalies and calculate the mean.

• Use a more accurate ruler.

• Increase the number of measurements.

• Decrease the number of measurements.

What is an anomaly?

• Result that doesn’t fit the pattern.

• Result that fits the pattern.

• Result that is close to the true value.

• Result that is close to other measurements.