JEOPARDY REVIEWForces Motion Newton Plate

TectonicsGeologic History

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When you push a penny across a table, the penny will slide and eventually come to a stop. What forces brings the penny

to a stop?A. GravityB. FrictionC. The air

D. The force of the table

• B. Friction

How can the force of friction be decreased to make it easier to move an

object across a metal table?A. Place sandpaper between the block

and tableB. Place oil between the block and table

C. Change the surface to rubberD. Change the surface to wood

• B. Place oil between the block and table

The mass of the Washington Monument would be

A. Greatest in Washington DCB. Greatest at the North Pole

C. Greatest on the moonD. The same at all locations

• D. The same at all locations

Why does a person weigh less at the top of a mountain than at the base of the mountain?A. The person has less mass at the top of the

mountainB. The person has more mass at the top of the

mountainC. The person is farther from Earth’s center when at

the top of the mountainD. There is less air pressure at the top of the

mountain

• C. The person is farther from Earth’s center when at the top of the mountain

What must be done to increase the velocity of a rocket traveling in space from 32,000 km

per hour to 40,000 kph?A. Increase the rocket’s massB. Decrease the rocket’s mass

C. Increase the force acting on the rocketD. Decrease the force acting on the rocket

C. Increase the force acting on the rocket

The formula v= a x t (velocity equals acceleration multiplied by time) is used to determine the velocity of free-falling bodies. As time increases, the velocity

A. increasesB. decreases

C. Remains the sameD. Increases then decreases

A. increases

At school, a teacher dropped a penny and a crumpled piece of paper from a third floor window.

The penny hit the ground first. Why did the penny hit the ground first?

A. The penny has greater massB. The penny weighs more than the paper

C. The crumpled paper has greater air resistanceD. The penny has greater air resistance

• C. The crumpled paper has greater air resistance

To travel the same distance in half the time, the speed of a moving object must be:

A. doubledB. tripled

C. quadrupledD. halved

• A. doubled

An ant crossed 3 meters of sidewalk in 3 minutes. What was the ant’s

speed?A. 1 meter/3seconds

B. 9 meters/3 minutesC. 1 meter/ minute

D. 3 kilometers/hour

• C. 1 meter/ minute

An object falling through a vacuum is affected only by the force of

A. Air resistanceB. GravityC. Velocity

D. mechanics

• B. Gravity

When a golf ball is placed on a tee, it will remain there until a golfer strikes the ball. This example

demonstrates the part of Newton’s first law that states:

A. A body at rest remains at rest unless acted upon by an outside force.

B. A body in motion remains in motion unless a force affects it

C. A large force is required to move a large massD. Every action has an equal and opposite reaction

• A. A body at rest remains at rest unless acted upon by an outside force

Esther pushed her model sailboat across a pond. According to Newton’s first law, the sailboat should have continued

straight across the pond but didn’t. The most likely reason for this was that:

A. The force of the wind changed the sailboat’s direction of motion

B. Fish swimming near the sailboat changed its direction of motion

C. The force of the water changed the sailboat’s direction of motion

D. The sailboat increased its acceleration across the pond

• A. The force of the wind changed the sailboat’s direction of motion

A pitcher on the Cleveland Indians baseball team exerted a pushing force when throwing a pitch to a batter. The batter took a swing but missed the ball. The force that eventually

changed the motion of the ball was most likelyA. Air friction

B. GravityC. The catcher’s mittD. The swinging bat

• C. The catcher’s mitt

A CO2 cartridge was mounted on the top of a toy car; with the nozzle of the cartridge

pointing towards the back. When the gas was released the car moved 6 meters across the

room and stopped. The reaction of the car to the release of the gas was to move

A. SidewaysB. backwardC. forwardD. upward

• C. forward

A CO2 cartridge was mounted on the top of a toy car; with the nozzle of the cartridge pointing towards the back. When the gas was released the car moved 6

meters across the room and stopped. The reaction of the car supports

A. Newton’s first law – a body in motion remains in motion unless a force acts on it

B. Newton’s third law - every action has an equal and opposite reaction

C. Both Newton’s 1st and 3rd lawD. Neither Newton’s 1st nor 3rd law

• B. Newton’s third law every action has an equal and opposite reaction

What is the name of the theory that states Earth’s crust is broken up into large

pieces that move and interact?A. Natural selection

B. Mountain buildingC. The rock cycleD. plate tectonics

• D. plate tectonics

Major Mountain ranges are formed when crustal plates

A. Push into each otherB. Slide past each other

C. Move away from each otherD. Break into smaller plates

A. Push into each other

Which finding provided early evidence for the theory of continental drift?

A. Observing that continents fit together like jigsaw pieces

B. Identifying major earthquake zones and volcanic belts

C. Measuring the distance across the Atlantic OceanD. determining the age of rocks under the Atlantic

Ocean

A. Observing that continents fit together like jigsaw pieces

What do you predict will happen to the Atlantic Ocean if seafloor spreading

continues along the Mid-Atlantic Ridge?A. It will become wider

B. It will become narrowerC. It will become deeperD. It will remain the same

A. It will become wider

What mechanism is thought to be responsible for seafloor spreading and

plate tectonics?A. Mid-ocean ridge volcanoes

B. Convection currents in the mantleC. Earthquakes at the edge of plates

D. Earth’s magnetism

• B. Convection currents in the mantle

By studying folds and faults in rocks, scientists can determine the

A. Absolute age of the rocksB. Order of past geologic events

C. Depth of the ocean when the rocks formedD. Life forms that lived when the rocks

formed

• B. Order of past geologic events

The geologic timetable is divided into three large time units called eras. Which factor

were these time divisions based upon?A. Volcanic and earthquake activityB. Locations where rocks are found

C. Equal units of geologic timeD. Major changes in the life forms

• D. Major changes in the life forms

The geologic eras are made up of smaller time units called periods. What are these

divisions based upon?A. Geologic events only

B. Biological changes onlyC. Geologic and biological events

D. Equal units of geologic time

• C. Geologic and biological events

What type of rock are most fossils found in?A. igneous rocks

B. Sedimentary rocksC. Metamorphic rocks

D. Volcanic rocks

• A. Sedimentary rocks

Which method is most reliable in correlating rocks from two different locations?

A. Identifying physical characteristicsB. Identifying mineral content of the rocksC. Identifying similar fossils in the rock layersD. Identifying the thickness of the rock layers

C. Identifying similar fossils in the rock layers

FINAL JEOPARDY• The acceleration rate of a free-falling object

near Earth is 9.8 m/s2. How would this compare with the acceleration rate of a free-falling object at 10km above the Earth’s surface?

The acceleration would be less because the distance between the center of the object and the center of the Earth is greater

so the gravitational force is less.