Year 7 Science · Unit 3 · Lesson 6

Newton's Second Law — Qualitative

Foundation Worksheet

Name
Date
Class

Learning Goals

Warm Up

True or False? Fix the false ones

Circle T or F for each statement. If the statement is false, rewrite it correctly on the line below.

More mass means more acceleration when the same force is applied.

Correct it:

T
F

If you double the force on an object (keeping its mass the same), its acceleration doubles.

Correct it:

T
F

Acceleration always acts in the same direction as the net force.

Correct it:

T
F

A tennis ball and a shot put thrown with the same force will accelerate at the same rate.

Correct it:

T
F

Your Turn

Fill the gap

Choose the correct word from the word bank to complete each sentence.

acceleration force mass Newton direction net speed gravity

Newton's Second Law says that depends on both and . When the same is applied to a lighter object, it produces more . Acceleration always acts in the same as the force on an object. This law is named after Isaac , who described the pattern mathematically.

Show What You Know

1. At the Bathurst 1000 car race, engineering teams work hard to reduce the mass of their cars. Explain, using Newton's Second Law qualitatively, why a lighter car is faster out of a corner.

Recall 2 marks

2. An AFL footballer kicks a dry football and a waterlogged football with the same kicking force. Predict which ball travels further and explain why, using the concepts of mass and acceleration.

Recall 2 marks

Wrap Up

In one sentence, what was the main idea of this lesson?

HSCScience · Year 7 Science · Unit 3 · Lesson 6 · Foundation Worksheet