Homework 28 Jan

Assumed Knowledge

Domain: knowledge and understanding:

Refer to the Science Years 7–10 Syllabus for the following:

5.6.2a) describe qualitatively the relationship between force, mass and acceleration

Force can be felt, Acceleration felt and observed, Newton invented the idea of mass as a mathematical link between force and acceleration, and the link explaining the gravitational forces between object. Mass is a mathematical value attached to an object. (Einstein also linked Mass with Nuclear Energy and there is also one further link of mass in Quantum Mechanics)

Write the equation linking Force , Mass and Acceleration.
If you were had a paddle that applied the same amount of force every time you used it. Describe how quickly you could accelerate in a Kayak that had:
a) Just you in it
b) You and a Polar Bear

5.6.2b) explain qualitatively the relationship between distance, speed and time
What two things do you need to measure speed?

Explain the “Hare and the Tortoise”

5.6.2c) relate qualitatively acceleration to change in speed and/or direction as a result of a net force

Explain what is happening in an arm wrestle.

5.6.2d) analyse qualitatively common situations involving motion in terms of Newton’s Laws.

Research Newton’s 3Laws –
Qualitatively Explain
N1: why holding a child in the front seat is not safe
N2: an arm wrestle
N3: why a punch hurts

First lesson

Your Text Book is Jacaranda HSC1
Your eBook is Excel we start with Moving about
This is a link to the eSyllabus