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100

A change in position relative to a frame of reference. 

Motion

100

What two factors affect the gravitational attraction between objects?

Mass and distance

100

What does the Newton (N) stand for? 

Force

100
Mrs. Trapp and Ms. Hill are arm wrestling to see who is the strongest. Mrs. Trapp is exerting a force of 5 N, and Ms. Hill is exerting a force of 5 N. Who is going to win? 

Neither; it is a balanced force. 

100

This word is the attraction between objects. 

Gravity. 

200

A force that acts in a direction opposite to the motion of the moving object. 

Friction

200

What is the device that contains a small magnet that helps us find our way?

Compass

200

As you move a nail further away from a magnet, its attraction to the magnet...

Gets weaker

200

Solve this: 9N to the right/8N to the left

1N to the right

200

Like poles...

repel each other

300

Solve this: 100N to the left/100N to the right

ON

300

What is represented by arrows to show the size and direction? 

Force

300

A roller coaster going down a hill is an example of what type of force? 

Unbalanced. 

300

The area of magnetic force around a magnet is called...

Magnetic field

300

What happens when two forces act on an object in the same direction?

The forces add together. 

400

Opposite poles...

attract each other

400

The closer together a magnet's magnetic field lines are...

The stronger the magnetic field. 

400

This is the measure of the force of gravity on an object. 

Weight

400

This term is an example of force. 

Weight

400

Solve this: 10N to the left/40N to the left/35N to the right

15N to the left

500

When an object is moving- what effect will a balanced force have on the object?

It will continue at a constant speed. 

500

If you throw a softball and a baseball with the same amount of force, what will happen? 

The baseball travels farther than the softball. 

500

If you have a bicycle and a car...which would require more force to slow down?

A car because it has more mass and more inertia. 

500

Two equal forces act at the same time on the same stationary object, but in opposite directions. What happens to the object's motion?

The object remains stationary. 

500

If two football linemen push against each other and then do not move, but then lineman B moves forward and lineman A moves backward, why does this happen? 

The forces are balanced, but then Lineman B exerts a greater force. This causes an unbalanced force. 

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