Final Review Jeopardy Template

Cat 1

Cat 2

Cat 3

Cat 4

100

Which method of testing substances is a sure way to identify a chemical reaction?

A. change in color

B. formation of bubbles

C. change in density

D. increase in temperature

E. solubility in water

A. change in color

100

According to Newton’s law of universal gravitation, which statement is true?

A. Lighter objects experience a higher acceleration than heavier objects.

B. Falling objects accelerate as they approach the ground.

C. The weight of an object increases as it moves away from the ground.

D. Lighter objects experience a lower acceleration than heavier objects.

E. The mass of an object increases as it moves closer to the ground.

B. Falling objects accelerate as they approach the ground.

100

Jay bought a toy car. To make the car move, he must turn a key attached to a spring. Turning the key winds the spring tight. The toy car moves when the key is released and the spring unwinds. What’s the main transformation of energy in this example?

A. chemical energy to electric energy

B. chemical energy to motion energy

C. electric energy to motion energy

D. electric energy to potential energy

E. potential energy to motion energy

200

Steel is an alloy of [copper] [iron] [silver]. One of the main reasons steel is used more widely than iron is because it’s [lighter] [softer] [stronger] than iron.

iron

stronger

200

Which chemical reaction absorbs energy?

A. photosynthesis

B. explosion

C. current produced by a battery

D. combustion of fuels

E. activated hand warmers

A. photosynthesis

200

Which two statements about an electric motor are true?

It converts motion energy to electric energy.
It depends on the relative motion of a magnet and a current-carrying wire.
It depends on a rotating magnet to create a magnetic field.
It converts electric energy to motion energy.
It doesn’t require electricity because it uses electromagnetism.

It depends on the relative motion of a magnet and a current-carrying wire.
It converts electric energy to motion energy.

200

Which object has the least amount of kinetic energy?

A. a car driving down a road

B. a soccer ball rolling down a hill

C. a bicycle locked to a bike rack

D. a satellite orbiting Earth

C. a bicycle locked to a bike rack

300

Which changes will increase the rate of reaction during combustion? (choose 2)

decreasing the area of contact between the reactants
adding more oxygen to the reaction
removing heat from the reaction
changing the reactants from solid form to powdered form
lowering the exposure of the reactants to air

adding more oxygen to the reaction
changing the reactants from solid form to powdered form

300

A company develops a new synthetic product and prepares to sell it to the public. Customers ask questions about how to properly dispose of the product. Which word is related to disposal?

A. cost

B. performance

C. productivity

D. profitability

E. recyclability

300

Jeff puts on a leather jacket over his sweater. The sweater becomes negatively charged. Which statements about Jeff’s situation are true?

The sweater has a tendency to attract electrons.
The sweater has a tendency to attract protons.
The leather jacket has a tendency to attract electrons.
The leather jacket has a tendency to attract protons.
The leather jacket has a lower tendency to attract electrons than the sweater.

The sweater has a tendency to attract electrons.
The leather jacket has a lower tendency to attract electrons than the sweater.

300

Which two statements are true about energy transformations?

Energy is never released from an object as heat.
Energy is never transformed between kinetic energy and potential energy.
Energy is never created.
Energy is never completely transformed.
Energy is never destroyed.

Energy is never created.

Energy is never destroyed.

400

The equation shows neutralization of an acid and a base to produce a salt and water.

2HCl + Na₂O → xNaCl + H₂O

Which value of x will balance the equation?

1,2,3 or 4

400

Plastic is a synthetic material. What are three advantages of using plastic?

It’s strong and durable.
It’s easy to recycle.
It’s relatively inexpensive.
It’s a good conductor of heat.
It repels water.

It’s strong and durable.
It’s relatively inexpensive.
It repels water.

400

Which two statements are true about all generators? (select two)

They convert motion energy to electric energy.
They have a fixed pair of magnets and a rotating metal coil.
They’re powered by fossil fuels.
They convert electric energy to motion energy.
They use the relative motion of a magnet and a coil of wire.

They convert motion energy to electric energy.
They use the relative motion of a magnet and a coil of wire.

400

Water is used to cool down automobile engines when they get hot. Why is water used as a coolant?

A. Water is a good conductor.

B. Water is a good insulator.

C. Water has a low heat capacity.

D. Water has a high heat capacity.

E. Water is a good radiator of heat.

D. Water has a high heat capacity.

500

Select the correct answer from each drop-down menu.

2NaOH + H₂SO₄ → Na₂SO₄ + H₂O

The equation is [balanced] [not balanced] because the number of hydrogen atoms and [oxygen] [sodium] atoms is [equal] [not equal] in the reactants and in the products.

not balanced

oxygen

not equal

500

A silver coin rubs vigorously against a wool cloth. The cloth becomes positively charged. Which statements are true?

The silver coin lost electrons.
The silver coin gained electrons.
The wool cloth lost electrons.
The wool cloth gained protons.
The wool cloth lost protons.

The silver coin gained electrons.
The wool cloth lost electrons.

500

Robert is hosting a backyard barbecue. He uses a charcoal fire to grill the chicken. The chicken cooks, but it never touches the fire directly. What energy transformation occurs as the chicken cooks?

A. chemical potential energy → radiant energy → thermal energy

B. thermal energy → chemical potential energy → motion energy

C. chemical potential energy → electric potential energy

D. motion energy → chemical potential energy → motion energy

E. radiant energy → electric potential energy → chemical potential energy

A. chemical potential energy → radiant energy → thermal energy

500

A stone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. The stone rolls down 10 meters and comes to rest on a patch of moss. The gravitational potential energy of the stone on the moss is ______ joules. (Use PE = m × g × h, where g = 9.8 N/kg.)

147