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WorksheetsSCIENCE 8 FIRST QUARTER
Total questions: 25
Worksheet time: 23mins
According to Law of Acceleration, if the force will go up, the mass will _____________.
A. go up
B. go down
C. be equal
D. be halved
It is the resistance that one surface or object encounters when moving over another.
A. friction
B. mass
C. speed
D. weight
It is the force acting on a matter when acted upon by the force of gravity.
A. Earth's gravity
B. inertia
C. mass
D. weight
It is the energy possessed by moving objects.
A. potential energy
B. kinetic energy
C. electrical energy
D. solar energy
It is the energy stored up by the object because of its position on the ground.
A. potential energy
B. kinetic energy
C. electrical energy
D. solar energy
This is the formula for kinetic energy.
A. ma
B. W/t
C. 1/2mv2
D. mgh
This is the formula for gravitational potential energy.
A. ma
B. W/t
C. 1/2mv2
D. mgh
The speed of sound is generally greatest in ____________.
A. vacuum
B. gases
C. liquid
D. solid
Which of the following statements is true regarding the influence of elasticity on the speed of sound?
A. Sound travels fastest in liquid because it is more elastic than solid or gas.
B. Solids are more elastic than liquid or gas but sound travels slower through them.
C. Sound travels slowest in gas because it is more elastic than others.
D. Sound travels faster in solids than liquid, but faster in gas than liquid.
This is an interference of light that results in the beams merging and producing a brighter light.
A. reflected ray
B. incident ray
C. constructive
D. destructive
Which of the following properties of light displays the bending of a light wave as it passes from one medium to another?
A. reflection
B. diffraction
C. interference
D. refraction
It is the amount of heat needed to raise the temperature of a body by 1K or 1 °C.
A. calorie
B. temperature
C. heat average
D. heat capacity
This scale sets the boiling point of water at a temperature of 32 °F and the freezing point at 212 °F .
A. Kelvin scale
B. Fahrenheit scale
C. Celsius scale
D. Newton scale
These are the subatomic particles that carry a negative charge.
A. proton
B. electron
C. neutron
D. nucleus
It is the flow of electric charge from one object to another when electrons travel through a wire.
A. electric charge
B. electric field
C. electric current
D. electric power
What is the force exerting on an object that has a mass of 3 kg and an acceleration of 15 m/s2? (F=ma)
45 N
0.2 N
5 N
What is the acceleration of an object if it has a mass of 25 kg and the force acting on it is 45 kg.m/s2? (F=ma)
0.56
1125 m/s2
1.8 m/s2
A woman has a mass of 45 kg. What is her weight in the moon? (W = mg)
27.78 N
72.9 N
441 N
Suppose you are lifting a luggage in a height of 5 m and you are exerting a force of 25 N. How much work is done? (W = Fd)
125 J
0.2 J
5 J
A ball with a mass of 65 kg was thrown from the top of a building with a height of 250 m. What is its gravitational potential energy? (GPE = mgh)
159, 250 J
16, 250 J
1, 658. 16 J
Convert 69 Celsius into Fahrenheit.
124.2 F
156.2 F
181.8 F
Convert 76 Fahrenheit into Celsius
24.44 C
-7.56 C
60 C
Convert 75 Celsius into Kelvin
75 K
-19816 K
348.16 K
What is the voltage of an electric fan if the current flowing is 354 and the resistance is 35 ohms?
10.11 V
12, 390 V
299 V
1. What law states that the acceleration of an object is directly proportional to the net force applied on it and inversely proportional to its mass.
A. Law of Inertia
B. Law of Interaction
C. Law of Acceleration
D. Law of Motion
