Chapter 2B Science-4th grade
Quiz by Pam Woith
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10 questions
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- Q1In science, energy means the......ability to move fast.ability to do work.position of an object.30s
- Q2A ball is held at the top of an incline. The energy it has at this point is called.....potential energy.kinetic energy.gravity.30s
- Q3When you kick a soccer ball, you give it....friction.potential energy.kinetic energy.30s
- Q4Which is an example of mechanical energy?a radio that you plug into a wall socket.a flashlight that uses a battery.a bicycle that moves when you pedal it.30s
- Q5A toy that uses a battery is powered by.....mechanical energy.electrical energy.chemical energy.30s
- Q6Which of the these is an example of work being done?You watch a TV program.You read a difficult book.You take out the trash.You listen to your car's engine.30s
- Q7The amount of work done depends on the amount of force you use and on....whether you try your best.how far the object moves.how difficult the task it.how heavy the object is.30s
- Q8You push a large rock, but it does not move. What has happened?You have not used force, and you have not done work.You have added potential energy to the rock.You have used force, but you have not done work.You have not used force, but you have done work.30s
- Q9A simple machine is a machine that....does not have wheels.does not use electricity.makes work easier.30s
- Q10Which one of these is a compound machine?inclined planepulleymotorcyclewheel and axle30s