Forces

A force...

• is a push or a pull on an object, which may or may not result in motion

• can only happen between two objects that are touching

• can only happen between two objects that are not touching

• always results in an object's motion

A force is measured in...

• Grams

• Newtons

• Watts

• Meters per second

What is NOT true about a balanced force?

• There is no change in the object's motion

• The net forces acting on the object are zero

• All forces acting on the object are equal

• The objects acceleration is changing

How do you calculate the net force on the object in the picture below?

• You would add the two forces together, the answer is 10N to the right

• You would subtract the two forces, the answer is 0N and there is no change in motion

• You would multiply the two forces, the answer is 25N to the left.

• You would divide the two forces, the answer is 1N to the right.

Choose the BEST answer. The force that opposes the motion of an object is known as...

• friction

• speed

• gravity

• energy

This is the name for the attractive force that exists between all objects that have mass.

• Motion

• Balanced force

• Acceleration

• Gravity

How do you calculate the net force on the object in the picture below?

• You would add the two forces together, the answer is 10N to the right

• You would subtract the two forces, the answer is 0N to the right

• You would multiply the two forces, the answer is 25N to the right

• You would divide the two forces, the answer is 1N to the right

True or false. There is a gravitation pull between you and your chair.

• True

• False

Which is described as "the force that resists motion between two objects that are touching"?

• gravity

• force

• friction

• motion

True or false. In order to move an object, you must overcome the friction that opposes its motion.

• True

• False