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SchoolNet: First Nine Weeks Review

Total questions: 22

Worksheet time: 16mins

Name
Class
Date
1.
Robby has two toy trucks. His red truck has a higher mass than his blue truck. What will he have to do to make the two trucks go the same speed?
a)
A. He can push both trucks with the same force for the same period of time. 
b)
B. He can push both trucks with the same force, but he will have to push the red truck for a longer time
c)
C. He can push both trucks for the same amount of time, but he will have to push the red truck with more force
d)
D. He can push both trucks for the same amount of time, but he will have to push the blue truck with more force. 
2.
Which of the following tables would be the hardest to pick up? 
a)
A. folding table with a mass of 18 kilograms
b)
B. plastic table with a mass of 11 kilograms
c)
C. wooden table with a mass of 60 kilograms
d)
D. metal table with a mass of 105 kilograms
3.
Violet kicks a football into the air. What will happen to the ball?
a)
A. It will rise, then keep rising. 
b)
B. It will rise, then fall to the ground.
c)
C. It will rise, then bounce in the air
d)
D. It will rise, then float in the air
4.
Landon drops a bowling ball and a feather at the same time. She sees that the feather falls slower than the bowling ball. What is most likely the reason this is true?
a)
A. The bowling ball has more gravity in it, making it heavier. 
b)
B. Gravity works faster on the bowling ball because it is heavier
c)
C. Air pushes up on the falling feather, working against gravity.
d)
D. The feather is not affected by gravity because it is too light
5.
Amber is outside watching airplanes. She wonders what keeps the airplanes in the sky. Which best describes what prevents the airplanes from falling to Earth? 
a)
A. The force of motion on the airplane is greater than the force of gravity pulling it down.  
b)
B. The force of motion of the airplane is less than the force of gravity pulling it down.  
c)
C. The airplane is higher than the point at which gravity would affect it
d)
D. The airplane is lower than the point at which gravity would affect it.
6.
Which of the following is a simple machine?
a)
car 
b)
leaf blower
c)
rake
d)
washing machine
7.
What simple machine uses a straight beam and a fulcrum?
a)
wedge
b)
screw
c)
lever
d)
pulley
8.
The picture shows a pulley.
a)
AIt changes the amount of force needed
b)
It changes the direction of force
c)
It decreases the amount of work needed.
d)
It increases the speed of force
9.
Jason is cutting logs for a fire. Which type of simple machine will best help Jason?
a)
a wedge because it changes the direction of force to split the logs
b)
an inclined plane because it uses a better angle of force to split the logs
c)
a pulley because it spreads the force outward to split the logs
d)
a lever because it changes the amount of force needed to split the logs
10.

Which statement best supports the claim that gravitational force affects the motion of an object?

a)

A toy falls to the ground when it is dropped.

b)

A tire comes to a stop after it finishes rolling.

c)

A baseball travels in the air when it is tossed.

d)

A magnet pulls a stack of paper clips toward it.

11.

A student is performing an investigation on unbalanced forces. The student applies a force to an object and observes the result. Which result would provide the best evidence of the existence of an unbalanced force?

a)

The object has a change in mass.

b)

The object has a change in size.

c)

The object has a change in shape.

d)

The object has a change in motion

12.

Which describes the correct flow of energy in the forest ecosystem shown?

a)

grasses → rabbits → hawk → fungi → sunlight

b)

sunlight → grasses → rabbits → hawk → fungi

c)

hawk → rabbits → fungi → sunlight → grasses

d)

sunlight → fungi → grasses → rabbits → hawk

13.

What will happen if water heats on a stove long enough?

a)

The water will evaporate.

b)

The water will melt.

c)

The mass of the water will increase.

d)

The volume of the water will increase.

14.

Lions hunt and eat antelope that graze in the African grasslands. If Africa has no rain for a long period of time, and plants die, what will happen to the population of lions?

a)

It will increase.

b)

It will decrease.

c)

It will remain unchanged.

d)

It will adapt to eating plants.

15.

The diagram below shows a pulley system. What is the pulley in the diagram doing?

a)

It is redirecting force.

b)

It is multiplying force.

c)

It is removing force

d)

It is eliminating friction.

16.

Which part of the forest ecosystem get energy from the rabbits?

a)

the Sun

b)

the Trees

c)

The hawks

d)

the grasses

17.

What would happen if the Monarch butterfly became scare?

a)

The monarch butterfly population would increase

b)

The wasp population would increase

c)

The Sun would increase

d)

The wasp population would decrease

18.

The Sun gives energy to the Phytoplankton. What kind role is the phytoplankton in the ecosystem?

a)

Producer

b)

Consumer

c)

Decomposer

d)

Predator

19.

What would happen to the consumers in the food web if all the producers died from a drought?

a)

All consumers would decrease because they have no food source

b)

All the consumers would increase because they have no food source

c)

All decomposers would decrease

d)

All producers would increase

20.

Two students push on the side of a box. All students push with 5 N. Which statement correctly describes why the box moves?

a)

The box is light

b)

The forces are unbalanced

c)

The forces are balanced

d)

Nothing is happening

21.

How does gravity affect movement?

a)

Objects float

b)

Gravity does not affect objects on Earth

c)

Gravity pulls objects down towards the center of the Earth

22.

What simple machine is a seesaw?

a)

Lever

b)

Pulley

c)

wedge

d)

screw

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