8th Grade Midterm Review Question Preview (ID: 40214)


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

What are the two main branches of physical science?
a) Chemistry and Biology
b) Biology and physics
c) Geology and chemistry
d) chemistry and physics

The difference between speed and velocity is that
a) velocity involves time, while speed does not
b) speed involves time, while velocity does not
c) velocity has direction while speed does not
d) speed has direction while velocity does not

Mass is
a) different on the moon than on Earth
b) dependent on gravity
c) a measure of the amount of space something takes up
d) does not change at all

When you wind a rubber band on a toy airplane, what type of energy does the ruber band have?
a) Kinetic energy
b) elastic potential energy
c) thermal energy
d) mechanical energy

When a bowling ball collides with a bowling pin, the momentum of the ball
a) decreases
b) decreases slightly as the velocity of the pin increases
c) decreases slightly as the velocity of the pin decreases
d) does not change at all

When a train increases its velocity its momentum
a) decreases
b) remains unchanged
c) increases
d) is transfered to its surroundings

A crumpled sheet of paper hits the ground before a flat sheet of paper because
a) the acceleration of gravity is greater on the crumpled paper
b) there is more aire resistance against the flat paper
c) the crumpled paper is more massive
d) the crumpled paper is less massive

Newton's first law of motion states that a moving object, unless it is acted on by an unbalanced force will
a) remain in motion
b) eventually come to a stop
c) change its momentum
d) accelerate

How many pathways are there for moving charges in a series circuit?
a) One
b) Two
c) Three
d) Four

Which of the following choices best represents force?
a) A push or a pull always causing motion
b) A push or a pull always causing acceleration
c) A push or a pull acting without an object
d) A push or a pull acting on an object

When you eat fruit and vegetables, what type of energy are you taking in?
a) thermal
b) sound
c) electrical
d) chemical

Which of the following is always a safety rule?
a) Work as fast as possible
b) never light a fire
c) always follow your teacher's instructions
d) take shortcuts if they are not dangerous

At the end of an experiment what must you draw?
a) a conclusion
b) a bar graph
c) a pciture
d) a chart

What is the net force on an object when you combine a force of 10 N north with a force of 5 N south?
a) 5 N south
b) 15 N north
c) 50 N north
d) 5 N north

When the net force is equal to 0 N the forces are considered to be
a) balanced
b) unbalanced
c)
d)

What is an object that appears to stay in place taht helps you dteect motion in another object?
a) a newton
b) a lubricant
c) a black hole
d) a reference point

Which of the following is the equation for Newton's second law of motion?
a) F = ma
b) M = Fa
c) a=mF
d) m=aF

Which of the following are two factors that determine speed?
a) acceleration and time
b) velocity and time
c) distance and time
d) motion and time

Greg applies a force of 100 N to move a box 5 meters. How much work did he do?
a) 100 J
b) 500 J
c) 5 J
d) 500 N

What is a switch that automatically opens if the current is too high?
a) Box switch
b) conductor
c) circuit breaker
d) insulator

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