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WorksheetsMotion (VA SOL PS.8) Gr8 Science SOL Review
Total questions: 43
Worksheet time: 38mins
Which of the following is the same as a Newton?
kg*m/s2
kg*m/s
m/s2
m/s
Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?
1st Law of Motion
2nd Law of Motion
3rd Law of Motion
A person is pushed forward into their seatbelt when a car stops
1st Law of Motion
2nd Law of Motion
3rd Law of Motion
A car accelerates faster than a truck.
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
The floor pushes up as a person’s foot pushes down.
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
The air is let out of a balloon and it flies around the room.
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
A swimmer pushes back on the water and moves forward.
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
According to the graph how far does the person travel in the first 5 seconds? (In this graph, distance is on the y-axis; time is on the x-axis)
2 m
10 m
0 m
5 m
A car taking off from a stop light. Acceleration?
yes-change in speed
yes-change in direction
no-constant velocity
A train is heading down a straight track with constant speed. Acceleration?
yes-change in speed
yes-change in direction
no-constant velocity
A girl is riding a roller coaster that is moving at a constant speed around a loop. Acceleration?
yes-change in speed
yes-change in direction
no-constant velocity
The amount of work done in a certain amount of time is ____.
work
mechanical advantage
mechanical efficiency
power
In order for work to be done, these two things must happen. CHOOSE BOTH THAT APPLY.
A force must be applied.
The mechanical advantage must be more than 1.
There must be two units for time.
The object must move some distance.
The number of times a machine multiplies your effort force (the input force) is _____.
mechanical efficiency
work
mechanical advantage
power
A wheelbarrow uses a lever. Where is the input force?
the force of the load on the wheelbarrow (the bricks)
the force the person is applying to the handles
the force of gravity on the wheelbarrow
the force of friction between the wheel and the ground
A seesaw is an example of which class of lever?
1st
2nd
3rd
An ax splitting wood is an example of which kind of simple machine?
wedge
screw
pulley
wheel and axle
A wheelbarrow is an example of which class of lever?
1st
2nd
3rd
Sally pushes a cart with 40 N of force over a distance of 2 m. How much work did she do? (Work = force x distance)
80 Watts
80 Joules
20 Watts
20 Joules
A car hauled a load of boxes 50 m using 300 J of work. How much force was needed to do the work? (Force = work / distance)
60 N
1500 N
6 N
0.6 N
What action would change this second class lever to a first class lever?
move the fulcrum all the way to the right
move the fulcrum to the middle
leave the fulcrum where it is but push down on the lever
move the load closer to the effort
Lobster claws are an example of which class of lever?
1st
2nd
3rd
On a wheelbarrow, which part is the fulcrum?
the barrel
the handles
the wheel
the load (the bricks)
The ratio of a machine's input force to output force tells you how many times it multiplies your work. This is called ___.
work
mechanical efficiency
power
mechanical advantage
The baseball continues to travel upward until gravity forces it back to earth. Which of Newton's laws of motion does this illustrate?
1st
2nd
3rd
