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• 1.

• 2.

What type of force is gravity?

• A.

Twist

• B.

Pull

• C.

Turn

• D.

Push

B. Pull
Explanation
Gravity is a force that pulls objects towards each other. It is responsible for keeping objects on the surface of the Earth and for the motion of celestial bodies. This force is always attractive, meaning it pulls objects together rather than pushing them apart. Therefore, the correct answer is "pull".

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• 3.

Which two tools below would be most useful in testing how the mass of an object can affect the distance it moves after being pushed?

• A.

Spring scale and hot plate

• B.

Balance and meter stick

• C.

• D.

Magnet and thermometer

B. Balance and meter stick
Explanation
The balance and meter stick would be most useful in testing how the mass of an object can affect the distance it moves after being pushed. The balance can be used to measure the mass of the object accurately, while the meter stick can be used to measure the distance the object moves after being pushed. By varying the mass of the object and measuring the corresponding distance it moves, one can analyze the relationship between mass and distance and determine how they are related.

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• 4.

Which of these is an example of the effect of gravity on an object?

• A.

Pushing a lawn mower

• B.

Attracting nails to a magnet

• C.

A pencil falling to the floor

• D.

Pedaling a bicycle

C. A pencil falling to the floor
Explanation
The correct answer is A pencil falling to the floor. This is an example of the effect of gravity on an object because gravity is the force that pulls objects towards the center of the Earth. In this case, the pencil is being pulled downwards by gravity, causing it to fall towards the floor.

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• 5.

During an investigation, students repeated a test three times.  Why is it a good practice to repeat an investigation?

• A.

To get more reliable information

• B.

To test different variables

• C.

To use different tools

• D.

To be sure the hypothesis is correct

A. To get more reliable information
Explanation
Repeating an investigation multiple times is a good practice because it helps to obtain more reliable information. By conducting the test multiple times, students can identify any inconsistencies or errors that may have occurred during a single trial. This repetition allows them to gather a larger sample size, reducing the impact of any outliers or random errors. It also helps to validate the results and ensure that they are consistent and reproducible. Overall, repeating an investigation increases the accuracy and reliability of the information obtained.

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• 6.

Students were testing on which surface their toy cars will travel the farthest.  Why did Car B travel farther than Car A?

• A.

Because smooth wood has less friction than sandpaper

• B.

Because smooth wood has more friction than sandpaper

• C.

Because sand paper provides no friction

• D.

Because smooth wood provides no friction

A. Because smooth wood has less friction than sandpaper
Explanation
Car B traveled farther than Car A because smooth wood has less friction than sandpaper.

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• 7.

The chart below shows the number of paperclips different magnets were able to lift. Which magnet had the greatest magnetic force?

• A.

Magnet F

• B.

Magnet G

• C.

Magnet H

• D.

Magnet J

C. Magnet H
Explanation
Based on the information provided in the chart, Magnet H had the greatest magnetic force as it was able to lift the highest number of paperclips compared to the other magnets (F, G, and J).

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• 8.

Students make a model of a balance to test the effect of force on an object.  If the white arrow represents a downward force that is greater than the mass of the box, the box will most likely-

• A.

Move down.

• B.

Not move.

• C.

Move up.

• D.

Change shape.

C. Move up.
Explanation
If the white arrow represents a downward force that is greater than the mass of the box, the box will most likely move up. This is because the force applied by the arrow is greater than the force of gravity acting on the box, causing it to move in the opposite direction of the force.

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• 9.

The force that acts opposite of motion and slows things down is-

• A.

Gravity.

• B.

Magnetism.

• C.

Friction.

• D.

Speed.

C. Friction.
Explanation
Friction is the force that acts opposite to motion and slows things down. When two surfaces come into contact, microscopic irregularities create resistance, causing objects to experience friction. This force opposes the direction of motion, making it harder for objects to move. Gravity is a force that attracts objects towards each other, magnetism is the force of attraction or repulsion between magnets or magnetic materials, and speed is a measure of how fast an object is moving.

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• 10.

Students want to know what surface would be the easiest to ride their bicycle across.  The students tested the following surfaces:  sidewalk, sand, grass and gravel.  What type of force are the students changing as their variable?

• A.

Friction

• B.

Gravity

• C.

Magnetism

• D.

Wind

A. Friction
Explanation
The students are changing the variable of friction. They are testing different surfaces to determine which one would provide the least amount of friction and therefore be the easiest to ride their bicycle across.

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• 11.

When the space shuttle was developed, scientists had to figure out how to launch it into space.  They used powerful rocket boosters to push it away from Earth.  What forces were scientists trying to work against?

• A.

The push of gravity

• B.

The push of friction

• C.

No forces were involved

• D.

The pull of gravity

D. The pull of gravity
Explanation
Scientists were trying to work against the pull of gravity when developing the space shuttle. Gravity is a force that pulls objects towards the center of the Earth. In order to launch the space shuttle into space, scientists needed to overcome this force by using powerful rocket boosters to push the shuttle away from Earth.

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• Current Version
• Mar 22, 2023
Quiz Edited by
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• Oct 24, 2013
Quiz Created by
Ritasfarina

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