Click the appropriate dollar amount at right to proceed to the question _________________________ _____________________ _____________________ _____________________ ___________________ ___________________ __________________ _________________ _________________ _________________ _________________ ______________ ______________ ______________ ______________ Forces in Motion
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Machine A performs 48 joules of work in 4 seconds. Machine B performs the same amount of work in half the time. Which machine uses more power? 50/50 Machine A Machine B A B They are the same No work was done C D
A driver is using a steering wheel to reduce the force needed to turn a car wheel. Which simple machine is this an example of? 50/50 Pulley Lever A B Inclined Plane Wheel and Axle C D
If Mr. Schmidt pushes on the table against Kody and Amber, the table moves toward _____________. 50/50 The floor The ceiling A B Brady Mr. Schmidt C D
Which complex machine uses MAINLY human force to operate the simple machines in it? 50/50 ship car A B bicycle go cart C D
The greater the net force acting on an object, the _________________ the acceleration of the object. 50/50 greater less A B nicer fuzzier C D
Which object has a steady, or constant, motion? 50/50 A sea star A car A B A pendulum The Earth C D
A train travels 140 miles west in 2 hours. What is the velocity of the train? 50/50 280 miles per hour 70 miles per hour A B 70 miles per hour west 280 miles per hour west C D
When you ride a roller coaster, what makes your body rise out of its seat at the top of a hill? 50/50 inertia friction A B gravity electricity C D
A truck hits a bug. What is the effect of force on the bug and the truck? 50/50 The truck has less force The bug has less force A B There is no force The same force on both C D
Which force keeps a satellite in orbit? 50/50 friction gravity A B magnetism elecricity C D
How do electricity and magnetism act on different objects? 50/50 They push or pull without touching. They can only pull objects. A B They can only push objects. The push or pull only if they touch C D
Which law is this? An object at rest remains at rest and an object in motion remains in motion until an outside force acts on them. 50/50 Newton’s Fourth Law Newton’s Third Law A B Newton’s Second Law Newton’s First Law C D
If a student throws a ball in outer space the ball will ______________ because there are few particles to slow it down. 50/50 explode not slow down A B begin to stop quickly speed up C D
Which of the following is a good example of a pulley? 50/50 A flagpole A screwdriver A B A tricycle wheel A ramp C D
Which law is this? Force equals Mass times Acceleration. 50/50 Newton’s First Law Newton’s Second Law A B Newton’s Third Law Newton’s Fourth Law C D
A Student says that if she throws a ball in space it will not slow down as quickly as it would on Earth. Is the student correct? Explain why or why not.
Identify two simple machines and explain how they make work easier. Provide an example of each simple machine you identify.
Isaac Newton explained how things move. Write Newton’s three laws of motion. Give an example of the first law at work.