WorksheetsM2 RETEST
Total questions: 10
Worksheet time: 6mins
1 Horse power (1hp) is equivalent to how many watts?
7.46 watts
74.6 watts
746 watts
7460 watts
If Joule is to energy, then kg.m/s2 is for ____?
Force
Power
Work
Efficiency
1 Joule is equivalent to how many Newton-meter?
1 N
10 N
100 N
1000 N
Which of the following events show this energy transformation: Chemical Energy to Mechanical Energy to Sound Energy + Thermal Energy
Rotating Turbine
Eating Food
A playing radio
Lighting a bulb using drycell
What is the work done when Alice was sitting on a swivel chair facing a computer screen and typing?
zero
positive
negative
not enough information
What is the work done if a boy is running around the park?
zero
positive
negative
not enough information
A truck with a mass of 30kg is moving at a speed of 60 m/s with a forward force of 100 N. How much horsepower a truck has?
7 hp
8 hp
9 hp
10 hp
What type of energy transformation is in a catapult?
PE to KE + Sound
KE to PE + Heat
KE to PE + Sound
PE to KE + Heat
What type of simple machine is a chopsticks?
Class 1 Lever
Class II Lever
Class III Lever
Class IV Lever
Which one is true if the lever's mechanical advantage is less than 1?
the effort distance is greater than the load distance
the effort distance is lesser than the load distance
the effort distance is equal to the load distance
the load distance is equal to the fulcrum.
