WorksheetsClass 5-Force work and energy(over all)
Total questions: 25
Worksheet time: 17mins
Door knobs and screwdrivers are examples of which kind of simple machine?
Pulley
Lever
Wheel and axle
Identify the simple machine
Lever
Wheel and axle
Wedge
Pulley
A football kicked by a boy rolls on the ground to some distance and stops. The force which stops the ball is
muscular force
gravitational force.
mechanical force.
frictional force.
An electric heater converts
heat energy to electrical energy.
electrical energy to heat energy.
light energy to electrical energy.
electrical energy to muscular energy.
A push or pull that causes an object to move, stop, or change direction.
force
friction
gravity
weight
Four students are pushing on one side of a desk. Colin is pushing to the west, Zoey is pushing to the east, Will is pushing to the north, and Kylee is pushing to the south. If the desk moves to the north, which student does work on the desk?
Colin
Zoey
Will
Kylee
What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?
mechanical energy to chemical energy
thermal energy to mechanical energy
chemical energy to mechanical energy
mechanical energy to thermal energy
What kind of energy is represented in the picture?
Thermal
Chemical
Sound
Kinetic
What type of energy is electrons flowing through a wire?
Electrical energy
Chemical energy
Kinetic energy
Mechanical energy
A solar calculator has to have light in order to work. What does the light energy transform into?
light
Mechanical
Potential
Chemical because of the battery.
Solar Energy is converted to _____ Energy.
Mechanical
Solar
Sound
Electrical
What is the energy transformation that occurs in an electric pencil sharpener?
mechanical energy to electrical energy
electrical energy to mechanical energy
radiant energy to sound energy
chemical energy to mechanical energy
Which object shows an energy transformation from electrical to mechanical?
Which of the following is a disadvantage of using solar energy?
releases carbon dioxide into the atmosphere
reduces the need for electricity from fossil fuels
produces energy only when the sun is shining
is an unclean source of energy
Which energy conversion is taking place when you put gasoline in a car and go for a long drive?
heat energy -> electrical
mechanical -> electrical
chemical -> mechanical
mechanical -> light energy
