KSSM_FORM 4_CHAPTER 11_11.3_

Gravitational force causes an object to always fall downwards.

• True

• False

The symbol used to represent gravitational acceleration is g.

• True

• False

The value of gravitational acceleration on the surface of earth is 10ms-2

• true
  

• false

Figure shows a coin and a feather falling simultaneously inside two transparent cylinder tubes, R dan S. Cylinder tube R contains, air whereas cylinder tube S is a vacuum. What is meant by a free fall?

• not occurs vacuum

• occur with resistance

• affects by air motion

• effects by gravitational force

Figure shows a coin and a feather falling simultaneously inside two transparent cylinder tubes, R dan S. Cylinder tube R contains, air whereas cylinder tube S is a vacuum. Compare the time taken between feather and coin in S?

• time taken for coin shorter than feather

• time taken for feather shorter than coin

• both coin and feather have same time taken

Figure shows a coin and a feather falling simultaneously inside two transparent cylinder tubes, R dan S. Cylinder tube R contains, air whereas cylinder tube S is a vacuum. Compare the time taken between feather and coin in R?

• time taken for coin shorter than feather

• time taken for feather shorter than coin

• both coin and feather have same time taken

Figure shows a coin and a feather falling simultaneously inside two transparent cylinder tubes, R dan S. Cylinder tube R contains, air whereas cylinder tube S is a vacuum. Free fall occurs if no air resistance acts on it?

• trues

• false

The figure above shows an experiment to study the time taken for an object to fall during free fall and non free fall motions. State the manipulated variable for this experiment.

• presence of air

• time taken for objects to fall on rubber

• height of an object

The figure above shows an experiment to study the time taken for an object to fall during free fall and non free fall motions. State the responding variable for this experiment.

• presence of air

• time taken for objects to fall on rubber

• height of an object

The figure above shows an experiment to study the time taken for an object to fall during free fall and non free fall motions. State the constant variable for this experiment.

• presence of air

• time taken for objects to fall on rubber

• height of an object