Science Ch 15 Question Preview (ID: 54915)


Science Review. TEACHERS: click here for quick copy question ID numbers.

To calculate the ____________of an object, divide the distance the object travels by the amount of time it takes to travel that distance.
a) Speed
b) Velocity
c) Acceleration
d) Work

________magnets have a north and south pole.
a) All
b) Some
c) Two
d) A few

To calculate distance, ___________the average speed by the time it took the object to travel that distance.
a) add
b) subtract
c) divide
d) multiply

Newton's first law of motion states that an object at rest will remain unless__________acts on it.
a) a force
b) time
c) inertia
d) velocity

A___________is a lever coiled around a cylinder
a) wedge
b) pulley
c) screw
d) wheel and axle

A________________is a simple machine that consists of two inclined planes back to back.
a) pulley
b) wedge
c) wheel and axle
d) screw

A magnet created by using an electric current is called
a) electromagnet
b) poles
c) lodestones
d) gold

____________is a measure of an object's speed and its direction.
a) Speed
b) Acceleration
c) Velocity
d) Work

____________is done when a force moves an object over a distance.
a) Work
b) Acceleration
c) Velocity
d) Speed

The amount of force needed to accelerate a mas of 1 kg by a speed of 1 mps per second is ___________________
a) friction
b) Newton
c) work
d) speed

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