Conservation of Mass & Energy: 7th Grade Quiz

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Mass and energy basics

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Feruza G'aniyeva

Uzbekistán

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Froggy Jumps Conservation of Mass & Energy: 7th Grade QuizVersión en línea Mass and energy basics por Feruza G'aniyeva 1 What does the law of conservation of mass state in a closed system? a Mass increases with reactions b Total mass stays the same c Mass decreases with energy release 2 In a chemical reaction inside a sealed container, what happens to total mass? a It becomes zero b It doubles c It remains constant 3 Which form of energy can convert to kinetic energy in a falling object? a Potential energy b Internal energy c Mass energy 4 If a candle burns in open air, why might mass seem to decrease? a Mass disappears b Mass converts to light only c Some gas escapes as smoke 5 Which statement is true about the conservation of energy? a Energy is created by reactions b Energy is destroyed completely c Total energy in a system stays the same 6 In a closed box, what happens to chemical energy if the system moves from potential to kinetic? a Mass increases b Energy is created c The total energy remains the same 7 Which is an example of energy transforming but not losing overall energy? a A glass breaks into pieces b New mass appears c A swinging pendulum converts PE to KE 8 If you compress a gas in a piston, what conservation idea applies to energy? a Mass doubles b Work done increases internal energy c Energy vanishes 9 What must be true for mass to be conserved in a reaction? a Only solids react b All reactants and products are contained with no leaks c Heat must be removed 10 Which is an energy form that is not typically counted as mass energy? a Mass energy b Nuclear energy c Kinetic energy

Froggy Jumps

Conservation of Mass & Energy: 7th Grade QuizVersión en línea

Mass and energy basics

por Feruza G'aniyeva

What does the law of conservation of mass state in a closed system?

Mass increases with reactions

Total mass stays the same

Mass decreases with energy release

In a chemical reaction inside a sealed container, what happens to total mass?

It becomes zero

It doubles

It remains constant

Which form of energy can convert to kinetic energy in a falling object?

Potential energy

Internal energy

Mass energy

If a candle burns in open air, why might mass seem to decrease?

Mass disappears

Mass converts to light only

Some gas escapes as smoke

Which statement is true about the conservation of energy?

Energy is created by reactions

Energy is destroyed completely

Total energy in a system stays the same

In a closed box, what happens to chemical energy if the system moves from potential to kinetic?

Mass increases

Energy is created

The total energy remains the same

Which is an example of energy transforming but not losing overall energy?

A glass breaks into pieces

New mass appears

A swinging pendulum converts PE to KE

If you compress a gas in a piston, what conservation idea applies to energy?

Mass doubles

Work done increases internal energy

Energy vanishes

What must be true for mass to be conserved in a reaction?

Only solids react

All reactants and products are contained with no leaks

Heat must be removed

Which is an energy form that is not typically counted as mass energy?

Mass energy

Nuclear energy

Kinetic energy

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Conservation of Mass & Energy: 7th Grade Quiz

Froggy Jumps

Sobre esta actividad

Creada por

Descarga la versión para jugar en papel

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Conservation of Mass & Energy: 7th Grade QuizVersión en línea

por Feruza G'aniyeva

What does the law of conservation of mass state in a closed system?

In a chemical reaction inside a sealed container, what happens to total mass?

Which form of energy can convert to kinetic energy in a falling object?

If a candle burns in open air, why might mass seem to decrease?

Which statement is true about the conservation of energy?

In a closed box, what happens to chemical energy if the system moves from potential to kinetic?

Which is an example of energy transforming but not losing overall energy?

If you compress a gas in a piston, what conservation idea applies to energy?

What must be true for mass to be conserved in a reaction?

Which is an energy form that is not typically counted as mass energy?

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