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14 questions
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- Q1What is friction?A type of speedA force that resists the motion of objects or surfaces that are directly touchingA type of energy that makes an object move fasterWhen the forces on an object cancel out one another120s112.38.c.4
- Q2Which of the following is an example of a direct contact force?Magnetic force fieldsGravitational force fieldsFrictionElectric force fields120s112.38.c.4
- Q3Why does a runner wear shoes with treads (similar to grooves on a tire)?All of the aboveTo grip the trackTo increase frictionTo prevent slipping120s112.38.c.4
- Q4What does it mean when an object is in equilibrium?All of the aboveIts state of motion does not changeThe net force is equal to zeroThe forces acting on the object cancel out one another120s112.38.c.4.c
- Q5Which diagram shows a box in equilibrium?ACBD120s112.38.c.4.c
- Q6Which team will win the game of tug-of-war in the picture above?Green teamBlue team120s112.38.c.4.c
- Q7Inertia is the resistance of an object to any change in its motion, including a change in direction. Which of the following objects has the greatest inertia?Ping pong ballBowling ballTennis ballBasketball120s112.38.c.4.e
- Q8Momentum is an indication of how hard it would be to stop an object. Which of the following examples would have the greatest momentum?A ping pong ball moving at a speed of 20 m/sA bowling ball moving at a speed of 20 m/sA tennis ball moving at a speed of 20 m/sA basketball moving at a speed of 20 m/s120s112.38.c.4.e
- Q9Which of Newton’s Laws states that for every action, there is an equal but opposite reaction?1st3rd2nd120s112.38.c.4.e
- Q10Which of Newton’s Laws states that an object at rest stays at rest and an object in motion stays in motion, unless acted on by an unbalanced force?1st3rd2nd120s112.38.c.4.c
- Q11Which of Newton’s Laws states that the acceleration of an object depends on the forces acting on the object and the object’s mass (F = m ✕ a)?3rd1st2nd120s112.38.c.4.d
- Q12Which of the following is an example of Newton’s 1st Law?A person leans on a wall and the wall pushes back.A person stays in motion until they are stopped by their seat belt when a car stops.When you put a book on the table the table pushes on the book.A larger car takes more force to move.120s112.38.c.4.c
- Q13Which of the following is an example of Newton’s 2nd Law?A full grocery cart requires more force to accelerate than an empty cart.When a person throws a ball it moves through the air and eventually hits the ground.A hockey puck eventually slows down and stops due to friction.A person kicks a ball and the ball pushes back on their foot.120s112.38.c.4.d
- Q14Which of the following is an example of Newton’s 3rd Law?A soccer ball will not move until someone kicks it.An 18 wheeler takes longer to accelerate than a small car.A skateboard can be stopped more easily than a small car.When a rocket launches, the steam goes down, and the rocket launches upward.120s112.38.c.4.e
