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Jeopardy Modified T/F Modified T/F Multiple Choice Multiple Choice Completion Completion 100 100 100 100 100 100 200 200 200 200 200 200 300 300 300 300 300 300 400 400 400 400 400 400 500 500 500 500 500 500

Balanced forces acting on an object cause the object to accelerate.

False; Unbalanced A 100

DAILY DOUBLE DAILY DOUBLE Place A Wager A 200

When you push downward on Earth to make a pole vault, Earth exerts an equal force on the pole.

True A 200

A ball is thrown horizontally A ball is thrown horizontally. Gravity causes the ball to continue to move horizontally. A 300

False; Inertia A 300

An object with a mass of 9. 0 kg has an acceleration of 3 m/s2 An object with a mass of 9.0 kg has an acceleration of 3 m/s2. The force acting on it is 3 N. A 400

False; 27 N A 400

If you throw a ball into the air, Earth exerts a force on the ball If you throw a ball into the air, Earth exerts a force on the ball. The ball in the air exerts no force. A 500

False; a force on Earth A 500

Friction is a force that speeds up motion between two surfaces that are in contact.

False; slows down B 100

When you ride your bike around a corner at 10 m/s, you are accelerating.

True B 200

Acceleration is caused by any forces.

False; unbalanced B 300

Cars, airplane wings, and bike helmets are built in a streamlined shape to reduce inertia.

False; air resistance B 400

Sliding friction keeps you in the seat when a car goes around a corner. B 500

False; Static B 500

Which of the following is an example of a noncontact force? a. musician playing piano b. athlete hitting a ball with a bat c. a ball falling after you toss it in the air d. karate expert breaking a stack of wood C 100

Which of the following is an example of a noncontact force? c. a ball falling after you toss it in the air C 100

a. direction of the force b. strength of the force An arrow can be used to represent a force. The length of the arrow represents _____. a. direction of the force b. strength of the force c. mass of the force d. acceleration of the force C 200

An arrow can be used to represent a force An arrow can be used to represent a force. The length of the arrow represents _____. b. strength of the force C 200

Which of the following best completes the phrase? For every action there is _____. a. a reaction b. an equal reaction c. an opposite reaction d. an equal and opposite reaction C 300

Which of the following best completes the phrase? For every action there is _____. d. an equal and opposite reaction C 300

DAILY DOUBLE DAILY DOUBLE Place A Wager C 400

Fred (m = 67 kg) foolishly attempts to jump from a canoe (m = 45 kg) to the dock. If he jumps forward with a speed of 3.3 m/s, how fast will the canoe move backward? a. 2.2 m/s b. 22 m/s c. 4.9 m/s d. 49 m/s C 400

Fred (m = 67 kg) foolishly attempts to jump from a canoe (m = 45 kg) to the dock. If he jumps forward with a speed of 3.3 m/s, how fast will the canoe move backward? c. 4.9 m/s C 400

A planet is discovered that is the same size as Earth and has the same gravitational acceleration, but has twice the mass. If you weigh 700 N on Earth, on the new planet you would weigh ____. a. 350 N b. 700 N c. 1,400 N d. 2,800 N C 500

A planet is discovered that is the same size as Earth and has the same gravitational acceleration, but has twice the mass. If you weigh 700 N on Earth, on the new planet you would weigh ____. c. 1,400 N C 500

Which of the following is a force? a. inertia b. friction c. acceleration d. velocity D 100

Which of the following is a force? b. friction D 100

Unbalanced forces can make an object accelerate by _____. a. changing its speed b. changing its direction c. both a and b d. neither a nor b D 200

Unbalanced forces can make an object accelerate by _____. c. both a and b D 200

DAILY DOUBLE DAILY DOUBLE Place A Wager D 300

Which of the following keeps a satellite in orbit? a. frictional force b. kinetic force c. centripetal force d. acceleration force D 300

Which of the following keeps a satellite in orbit? c. centripetal force D 300

a. the law of conservation of momentum b. Newton's first law of motion The relationship among force, mass, and acceleration is stated in ____. a. the law of conservation of momentum b. Newton's first law of motion c. Newton's second law of motion d. Newton's third law of motion D 400

c. Newton's second law of motion The relationship among force, mass, and acceleration is stated in ____. c. Newton's second law of motion D 400

The force that opposes motion is ____. a. a balanced force b. an unbalanced force c. an accelerating force d. friction D 500

The force that opposes motion is ____. d. friction D 500

DAILY DOUBLE DAILY DOUBLE Place A Wager E 100

If you are riding on a skateboard and it stops suddenly, your body keeps moving forward. This is because of ____________________. E 100

inertia E 100

Speeding up, slowing down, and going around curves are examples of ____________________.

acceleration E 200

Mike has a mass of 60 kg. He pulls on a wagon of mass 30 kg with a force of 20 N. The wagon remains motionless. The wagon exerts a force of ____________________ on Mike. E 300

20 N E 300

A car going around a corner, hits an icy path, and skids off the road A car going around a corner, hits an icy path, and skids off the road. This represents a change from rolling friction to ____________________ friction. E 400

sliding E 400

To keep a sled accelerating downhill, the force of gravity must be greater than the ____________________ force. E 500

normal friction E 500

____________________ is the tendency of an object to resist any change in its motion.

Inertia F 100

Newton's first law of motion states that an object stays in constant motion unless a(n) ____________________ force acts on it. F 200

unbalanced F 200

A rocket launching is an example of Newton's ____________________ law.

third F 300

Forces that change an object's motion by touching the object are ____________________ forces.

contact F 400

A(n) ____________________ is a push or pull that one object exerts on another. F 500

force F 500

The Final Jeopardy Category is: Forces Please record your wager. Click on screen to begin

Click on screen to continue Identify two pairs of action-reaction forces involving the rope. Click on screen to continue

Click on screen to continue black dog on rope; rope on black dog; white dog on rope; rope on white dog Click on screen to continue

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