WorksheetsEnergy CFA 1 Study Guide
Total questions: 20
Worksheet time: 10mins
The kinetic energy of an object is equal to one half its mass time speed^
2
3
4
10
The gravitational potential energy of an object is equal to its weight x _____.
mass
height
force
weight
Energy is the ability to do work or cause ____.
problems
change
issues
force
Energy and work are measured in ____.
inches
miles
newtons
joules
Potential energy results from the ___ or position of an object.
shape
color
mass
motion
Thermal energy is _____________ or heat energy.
energy stored in a nucleus
broken chemical bonds
the total kinetic and potential energy of particles
moving electrons
---- is called radiant energy and travels through space in waves (light, sound, microwaves, X-rays)
electromagnetic
nuclear
chemical
mechanical
____ is the energy of electrical changes - lightning, batteries, and electrical lines
electrical
electromagnetic
nuclear
chemical
Chemical energy is potential energy stored in chemical bonds - what are some examples?
food, matches, body cells
light, sound
heat energy
occurs in the sun
____ energy is stored in an atom's nucleus and occurs in the sun.
kinetic
chemical
thermal
nuclear
In a pendulum, a continuous change occurs between kinetic energy and _____ energy.
potential
thermal
nuclear
mechanical
Energy can be neither created nor ____.
destroyed
transformed
stopped
transmitted
A change from one form of energy to another is called an energy transformation.
True
False
Fusion reactions in the sun change nuclear energy into electromagnetic energy.
True
False
Which is true about kinetic energy?
As the speed increases, the kinetic energy stays the same
As the speed increases, the kinetic energy decreases at a constant rate
As the speed increases, the kinetic energy increases and the rate of change increases
As the speed increases the potential energy increases
At what hill will a car most likely come to a stop?
3
4
2
1
If the cars want to reach the end of the track, which hill would need to be increased?
1
2
3
4
If the cars want to reach the end of the track, which hill would need to be lower?
3
2
4
5
Which would have the most kinetic energy if it was moving?
Sports car at 1,100 kg
Fire Engine at 3,000 kg
Bicycle at 26 kg
Motor Cycle at 500 kg
Students transferred energy to a material. The material all started at 20 degrees Celsius. Each material had different amounts of energy transferred. Which had the most energy transferred/absorbed?
Material A: 3 g at 60 degrees Celsius
Material B: 1 g at 60 degrees Celsius
Material C: 3 g at 30 degrees Celsius
Material D: 1 g at 30 degrees Celsius
