Which statement is true about unbalanced forces? (1 point)
O They only change an object's speed.
O They only change an object's direction.
O They have no impact on an object in motion.
• They can change both an object's speed and direction.
• They can change both an object's speed and direction.
What is the unit used for measuring force? (1 point)
• gram
O joule
• newton
• kilometer
• newton
Which example shows unbalanced forces acting on an object? (1 point)
Two people are on opposite sides of a large box. Both people push the box with equal force.
Two people are on opposite sides of a large box. Both people pull the box with equal force.
Two people are on the same side of a large box. One person pushes the box and the other pulls the box with equal force.
Two people are on the same side of a large box. Both people pull the box with equal force.
Two people are on the same side of a large box. One person pushes the box and the other pulls the box with equal force.
A person tries to push a refrigerator across the kitchen. She applies as much force as possible, but she cannot
make the refrigerator move.
Which statement BEST describes by the refrigerator does not move?
(1 point)
• The person does not apply enough force to the refrigerator, so the forces are unbalanced.
• The person applies too much force to the refrigerator, and now the forces on the refrigerator are unbalanced.
• The person applies too much force to the refrigerator, and now the forces on the refrigerator are balanced.
• The person does not apply enough force to the refrigerator, so the forces are still balanced.