Page 120 - SK Year 6 Science DLP

Mind Mind
Challenge
Challenge

Answer all of the following questions in the Science exercise book.

1. Explain the effects of force on the objects in the following activities.
a) Noor hits a stationary ball with a hockey stick.
b) Kugan catches a ball thrown at him.
c) Rose hits the shuttlecock moving towards her.
d) Raju is kneading roti canai dough.

2. State the types of force involved in the following activities.

Activity Force

a) Putting on socks
b) Squeezing toothpaste
c) Cutting wood using a handsaw

d) Playing the piano
e) Pumping tyre using a hand pump

3. The table below shows the results of an investigation. Ball X and Ball Y
were released on an inclined plane. The time taken by the two balls to
reach the end of the track was recorded.

Time taken to reach the end of the
Ball
track (s)
X 4
Y 8

a) Give two inferences on the difference in the time taken to reach the end
of the track between the two balls.
b) Based on your answers in (a), make a suitable hypothesis.
4. Ahmad pushed three different metal balls of different masses with the
same amount of force. The distance travelled by the three metal balls are
as follows.

The 300 g metal ball travelled 150 cm.
The 200 g metal ball travelled 200 cm.
The 100 g metal ball travelled 350 cm.

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