form 4 terms

Some revision list of form 4 summarized terms.                                                        

Form 4 TERM	VALUE	MEANING
Acceleration ,a	Low / small (+)	Slow increase of velocity
	High / big	Fast increase of velocity
	negative	Decrease in velocity, deceleration
Density, ρ	Low / small	Lighter / less compact
	High / large	Heavier / more compact
Spring Force constant , k	Small	Spring is soft / easy to stretch
	Large / big	Spring is stiff / difficult to stretch
Specific Heat Capacity ,c	Low / small	Easily heated up , short time to heat up Need less heat to raise temperature
	High / large	More difficult to heat up, takes more time to heat up Need more heat to raise temperature, use more fuel
Specific Latent Heat, L	Low / small	Need less heat to melt / vaporise Time to melt / vaporise is shorter
	High / large	Need more heat to melt / vaporise Time to melt / vaporise is longer
Melting point / Freezing point	Low	Melts at low temperature / Freezes at low temperature. · Starts melting earlier / Starts freezing later
	High	Melts at higher temperature / Freezes at higher temperature. · Starts melting latter / Starts freezing earlier
Boiling point	Low	Starts boiling at lower temperature Starts boiling earlier condensation occur at slower rate
	High	Starts boiling at higher temperature Starts boiling latter Condensation occur at faster rate
Refractive index	Low / small	Substance that refracts light less
	High / large	Substance that refracts light more
Critical angle	Small	Easier for total internal reflection to occur
	Large / big	Difficult for total internal reflection to occur
Power (of a lens)	Low	Large / long focal length Refract light less
	High	Short focal length Refract light more
Focal length	Short	Higher power , thicker lens
	Large / long	Lower power