# Force And Motion: Question Preview (ID: 26616)

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Car A = 2,000 lb. Car B = 1,500 lb. Which of the following statements about the pull of gravity is true?
a) The pull of gravity is stronger on Car A because it has greater mass.
b) The pull of gravity is stronger on Car B because it has greater mass.
c) The pull of gravity is the same on both cars because Earth's mass is so much greater than the mass of either car.
d) There is no pull of gravity because both cars are moving forward.

How are the forces of magnetism and electricity related?
a) Magnets are made of metal, and metal is electric.
b) Both forces attract certain kinds of metals.
c) Both forces are only produced by people, not found in nature.
d) Magnets can produce electricity, and electricity can turn some metals into magnets.

Rubbing your hands together is an example of sliding friction, while a paper plane flying through the air is an example of
a) fluid friction
b) rolling friction
c) solid friction
d) heating friction

If you pull a rubber band back but don't release it, what kind of energy does the rubber band have?
a) kinetic energy
b) potential energy
c) wasted energy
d) motion energy

Which task would require the most work?
a) carrying a 1 pound bucket of water 5 feet
b) carrying a 5 pound bucket of water 10 feet
c) carrying a 1 pound bucket of water 10 feet
d) carrying a 5 pound bucket of water 5 feet

A plant soaks up energy from the Sun and turns it into food so it can grow. A cow eats the plant so it can have energy to walk. You eat or drink products from the cow so you can have energy to play. This series of steps is called?
a) energy movement
b) energy switching
c) energy transfer
d) energy conversion

For every action in one direction,
a) a weaker force acts in the same direction.
b) an equal force acts in the opposite direction.
c) a stronger force acts in the opposite direction.
d) an equal force acts in the same direction.

According to Newton's second law of motion, which object will require the most force in order to change its motion?
a) the one with the greatest mass and fastest speed
b) the one with the greatest mass and slowest speed
c) the one with the least mass and slowest speed
d) the one with the least mass and greatest speed

If a friend bumps into the side of you while you are skating in a straight line, what will happen to your motion?
a) You will stop.
b) You will speed up.
c) You will keep skating in a straight line.
d) You will change direction.

What are Newton's laws of motion?
a) rules people must follow when driving in Newton, Iowa
b) rules that describe how most objects on Earth move
c) rules that describe how all objects in the universe move
d) rules that explain how gravity affects all objects that have mass

Which statement about force and motion is true?
a) For every force, there is a motion.
b) For every motion, there is a force.
c) Force and motion have the same meaning.
d) People and nature produce forces, while machines produce motion.

What will an object do if it has inertia?
a) It will stay at rest until a force acts upon it.
b) It will keep moving until a force acts upon it.
c) It will keep moving or stay at rest forever.
d) It will keep moving or stay at rest until a force acts upon it.

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