As Sushil is pushing a carton up a ramp, the _____ energy from the food that Sushil has eaten changes into _____ energy of the carton. When the carton reaches the deck of the lorry, this energy is stored in the carton as _____ energy. However, some of the energy from Sushil is changed into _____ and ____ energy.
Select the correct sequence of words to complete the above paragraph.
A Chemical, Kinetic, Gravitational, Heat, Potential
B Kinetic, Potential, Frictional, Heat, Light
C Chemical, Kinetic, Potential, Heat, Sound
D Chemical, Potential, Kinetic, Heat, Sound
Which of the things listed below are biodegradable?
(i) Paper (ii) Plastic tub
(iii) Silver coin (iv) Roasted chicken
(v) Debit card (vi) Apple
A(i) and (ii)
B(iii) and (iv)
C(ii), (iii) and (v)
D(i), (iv) and (vi)
The given graph shows the time taken for a ping-pong ball to roll over the same distance over three different surfaces P, Q and R.
If the push and gravitational pull exerted on the ping pong ball are the same, which surface, P, Q or R is the smoothest?
DCannot be determined