Chapter 7 Energy and Power :)
Quiz
•
Science
•
KG
•
Medium
Guru Moe
Used 17+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Why a car with the same velocity as a motorcycle have higher kinetic energy?
Car has larger size
Car is capable of carrying more load
Car has more tires
Car has larger mass
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following statement describes the principle of conservation of energy?
Energy cannot be created and destroyed but can change to other form
Some of the energy is destroyed when it change form
Energy can be created but cannot be destroyed
Energy can be created and destroyed
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Work is defined as the product of _____ (mass/force) and displacement.
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
S.I unit for work is ____ (Joule/Newton).
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diagram 3 shows a coconut falling from a tree. What is the speed of the coconut before it reaches the ground?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diagram 1 shows two situation, P and Q. What type of energy is possessed by situation P and Q?
P : Gravitational Potential Energy
Q : Elastic Potential Energy
P : Gravitational Potential Energy
Q : Kinetic Energy
P : Elastic Potential Energy
Q : Kinetic Energy
P : Kinetic Energy
Q : Gravitational Potential Energy
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A crane uses 112.5W to lift iron rod weighing 900N for height of 4.5m. How much time does the crane take to complete the work?
3.3 minutes
33 seconds
3.6 minutes
36 seconds
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