Q3- Summative Test
Quiz by Rosanna Villamor
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- Q1
1. Friction can be seen everywhere. Which of the following statements is true about friction?
It always opposes motion.
It acts on the same direction.
It only exists when there is motion.
It is the same as kinetic friction.
30s - Q2
. Friction plays an important role in our life. Which of the following statements is true?
It slows down or stops objects in motion.
It does not affect the motion of an object.
It pulls all objects towards the center of the Earth.
It is only present if gravity is also present.
30s - Q3
It will be difficult if there is no friction. Which of the following sentences best describes frictional force?
It occurs when two surfaces touch against each other.
It occurs when two surfaces do not touch against each other.
It only occurs between solid surfaces and liquid surfaces.
It occurs on one surface.
30s - Q4
. Gravity attracts all physical bodies. Which of the following statements is true about gravity?
It stops the rotation and revolution of Earth.
It pushes everything away from the Earth.
It pulls objects toward the ground.
It is greater on rough surfaces.
30s - Q5
Gravity affects movement of an object. Which of the following situations show the effect of gravity?
Lighting a matchstick.
Applying breaks to stop a vehicle.
Fruit falling from the tree.
Rolling ball suddenly slows down and stops.
30s - Q6
Gravity pulls us down. What might happen if you move against gravity?
No force is needed
Less force will be needed
Nothing will happen
More force will be needed
30s - Q7
. Gravity keeps the moon in orbit around the Earth. What will happen to the gravitational force if the moon is closer to Earth?
Disappears
Increases
Remains the same
Decreases
30s - Q8
Why does a bicycle travel faster when moving down than moving up?
Its goes against the pull of gravity.
It is moving towards the pull of gravity.
It is pulled through the weight of the bicycle.
It is pushed by the wind.
30s - Q9
Solar panels or solar cells do not make use of costly fuel and make no noise or pollution. Which energy does it get from the sun?
heat
light
sound
electrical
30s - Q10
What form of energy is produced when a phone rings?
sound
light
heat
electrical
30s - Q11
Our body is considered as a heat engine. Which situation uses heat energy in our body?
Watching your favorite video in YouTube.
Studying the lessons in the modules.
Doing a 15- minute exercise at home.
Taking a bath.
30s - Q12
Which form of energy travels through empty space and in all directions?
sound
heat
electrical
light
30s - Q13
. A student is using a cellphone to communicate with her friend. Which of the following energy transformation happen during their conversation?
light to sound
sound to light
electrical to sound
heat to sound
30s - Q14
Which appliance below can transform heat to sound energy?
light bulb
lighting firecrackers
blender
hand mixer
30s - Q15
We use an electric kettle in boiling water. Which energy transformation takes place when you use an electric kettle?
light energy--- heat energy
heat energy----- electrical energy
electrical----heat energy
light energy--- heat energy
30s