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WorksheetsGrade 7 EOT practice
Total questions: 14
Worksheet time: 7mins
Which of the following examples demonstrate a non-contact force?
Throwing a baseball
Rain falling from the sky
Two kids pushing each other
A mother pulling her children in a wagon
Three cars decide to have a race to see which car is the fastest
Car A has a mass of 1200kg and a force of 36000N
Car B has a mass of 2000kg and a force of 27000N
Car C accelerates at a rate of 30 m/s2
Which car accelerates the fastest?
Car A
Car B
Car C
Cars A and C
What forms of potential energy are present in the picture below?
Elastic energy in the tires, chemical energy moving downhill
Nuclear energy in the battery, chemical energy in the tires
Gravitational energy moving downhill, elastic energy in the petrol
Chemical energy in the petrol and car battery, gravitational energy at the hilltop
What is the relationship between hydrogen and water?
The element and compound are both atoms made up of elements
The element and compound are both atoms made up of substances
The element and compound are bot substances made up of atoms
The element and compound are both mixtures made up of atoms
Which of the following is an example of longitudinal wave?
A sound wave coming from a radio
A water wave ripping in a pond
A flag waving in the wind
Light waves shining from the Sun
When you are watching your favorite TV show, what forms of energy are used and produced?
Electric, light and mechanical
Mechanical, sound and nuclear energy
Electric, sound and light
A surfboard was not secured to the top of a stopped van, when the van accelerated, the surfboard fell to the ground in the original location of the van. Which one of Newton’s laws best explains what happened?
Newton’s third law of motion
Newton’s first law of motion
All of newton’s laws can b used to explain what happened
Newton’s second law of motion
How is the water vapor found in the atmosphere affected when thermal energy is removed?
It evaporates forming liquid water
It condenses forming ice
It freezes forming ice
It condenses forming liquid water
What is the relationship between wavelength and frequency with respect to electromagnetic waves?
As wavelength decreases, frequency remains the same
As the wavelength decreases, the frequency decreases
As wavelength increases, frequency decreases
As the wavelength decreases, the frequency decreases
Describe the energy transformation that takes place in a hairdryer
Thermal to electric
mechanical to thermal
electric to thermal
electric to nuclear
What form of energy does a hair dryer produce that is not needed?
Electric energy
Sound energy
Thermal energy
Mechanical energy
................ are electromagnetic waves with the longest wavelength and lowest frequency
infrared waves
radio waves
gamma rays
Microwaves
The warmth you feel from a campfire is caused by ……………….
infrared waves
radio waves
gamma rays
Microwaves
Electromagnetic waves with the shortest wavelength and highest frequency are ……………
infrared waves
radio waves
gamma rays
Microwaves
