- Diagram
2.1(a) shows an empty pickup truck. Diagram 2.1(b) shows the same pickup
truck carrying a crate.
Rajah
2.1(a) menunjukkan sebuah lori pengangkut. Rajah 2.1(b) menunjukkan lori pengangkut yang sama membawa kontena
barangan.
(a) What is meant by inertia?
Apakah yang dimaksudkan
dengan inertia?
……………………………………………………………………..
…………………………………………………………………………...
[1 mark] / [1 markah]
(b) Compare
the mass of the pickup truck in diagram 2.1(a) with the total mass of the
pickup truck and crate in diagram 2.1(b).
Bandingkan jisim lori
pengangkut dalam rajah 2.1(a) dengan jisim lori pengangkut beserta kontena barangan
dalam rajah 2.1(b).
…………………………………………………………………………..
[1 mark] / [1 markah]
(c) Compare the inertia of pickup
truck in diagram 2.1(a) with inertia of pickup truck and crate in diagram
2.1(b)
Bandingkan inertia lori
pengangkut dalam rajah 2.1(a) dengan inertia lori pengangkut dan kontena
barangan dalam rajah 2.1(b)
…………………………………………………………………………..
…………………………………………………………………………..
[1
mark] / [1 markah]
(d)
When pickup truck in diagram 2.1(b) suddenly moves
forwards, the crate will move backwards. Explain why.
Apabila
lori pengangkut dalam rajah 2.1(b) bergerak kehadapan tiba-tiba, kontena
barangan akan bergerak ke belakang. Terangkan mengapa.
……………………………………………………………………………………
……………………………………………………………………………………
[1 mark] / [ 1
markah]
(e)
Give one
example of positive effect of inertia.
Nyatakan satu contoh kesan inertia yang positif.
…………………………………………………………………………
[1 mark] / [1
markah]
Tendency of object to remain at rest
or moving with uniform velocity
Mass in 2.1(a)<2.1(b)
Inertia in 2.1(a)<2.1(b)
Inertia of crate to remain at rest
Shake bottle up and down, source comes
out