Forces and Motion

Which type of force(s) will cause a change in an object's motion?

• gravity
• zero net force
• balanced forces
• unbalanced forces

What is the name for a push or pull?

• A movement
• A force
• Speed
• Density

Friction is a force that acts _________________

• in the same direction as the motion

• opposite to the direction of the motion

• opposite to the applied forces

• the same direction as the applied force

Which one needs a greater net force to move, a kilogram of feathers or a kilogram of iron?

• feathers

• iron

• same

• depends on their friction

You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.

• 20N 
• 40N 
• 10N 
• 70N

In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N.What is the net force?

• 50N to the left.

• 350N to the left.

• 350N to the right.

• 50N to the right.

A balanced force has

• no net force

• some net force

• a little bit of net force

• a lot of net force

Any change in an objects speed or direction

• Inertia
• Force
• Acceleration
• Reaction

The sum of all forces acting on an object.

• Contact Force
• Balanced Force
• Unbalanced Force
• Net Force

Balanced or Unbalanced?

• Balanced 
• Unbalanced