science 6 review sts genap

Read the statements below for the question!

1)     The unit is measured in Newton

2)     The unit is measured in Kilogram and Gram

3)     Using a scale balance

4)     Using a force meter

Based on the statements above, the right explanations of mass are shown on ... .

• 1 and 4

• 2 and 3

• 1 and 3

• 2 and 4

The scientist from England who explained force includes the Universal Law of Gravitation is ... .

• Thomas Edison

• Alexander Graham Bell

• Robert Fulton

• Sir Isaac Newton

When an astronaut stands on a weighing scale on Earth, the scales read 60 kg. The astronaut travels to planet 'ZZ' which has half the Earth's gravitational force.. The astronaut's mass on Earth is ... .

• 30 kg

• 60 kg

• 588 newtons

• 294 newtons

The sentences below explain forces, except ... .

• a force is a push/ pull in a particular direction

• pulling is the force you exert to move something closer to you

• pushing is the force you exert to move something away from you

• when we pull an object, it moves farther from you

An object will ... if the mass of the object is greater than the mass of water.

• move

• fly

• sink

• float

The tennis ball sinks towards the bottom of the tank because ... .

• the mass of the tennis ball is greater than the mass of water

• the mass of the tennis ball is less than the mass of water

• the mass of the tennis ball is smaller than the mass of water

• the tennis ball is weightlessness

Here are the right statements based on the diagram above, except ... .

• picture a is the parallel circuit

• picture b is the parallel circuit

• picture c is the series circuit

• picture b and c are parallel circuits

Reflection happens when the light bounces off the mirror and enters to eyes. Here are the examples of reflection, except ... .

• when we see our images on mirrors

• the moon reflects light from the sun

• seeing the images of trees in clear water

• a pencil looks bent when placed in a glass of water

The following surfaces would produce the most clear reflection, except ... .

• smooth and polished surfaces

• polished and shiny surfaces

• shiny and smooth surfaces

• bumpy and rough surfaces

A periscope uses the principle of ... to ... light to help people see over obstacles.

• camera, refract

• mirror, reflect

• lens, refract

• light to reflect