1) What is a push? a) the act of applying force in order to move something away b) the act of applying force to move something toward or with you c) a force that pushes or pulls a magnetic material across a distance d) a force that pulls objects toward the center of the earth 2) What is a pull? a) the act of applying force in order to move something away  b) a force that pushes or pulls a magnetic material across a distance c) the act of applying force to move something toward or with you d) a force that pulls objects toward the center of the earth 3) What is gravity? a) a force that pushes or pulls a magnetic material across a distance b) a force that pulls objects toward the center of the earth c) he act of applying force to move something toward or with you d) act of applying force in order to move something away 4) What is friction? a) act of applying force in order to move something away b) a force that acts in an opposite direction to movement c) a force that pulls objects toward the center of the earth d) a force that pushes or pulls a magnetic material across a distance 5) What is force? a) a push or pull that can change the position or motion of an object b) a force that acts in an opposite direction to movement c) an idea that can be tested by experiment or observation d) the place where something is located 6) What is motion? a) a push or pull that can change the position or motion of an object b) the place where something is located c) the substance, object or group in an experiment that is not changed d) a change in the position of an object 7) What is position? a) a change in the position of an object b) a force that acts in an opposite direction to movement c) the place where something is located d) a force that pushes or pulls a magnetic material across a distance 8) How many variables should be tested in a controlled experiment? a) 1 b) 2 c) 3 9) How you do make an experiment reliable? a) providing the same results on repeated trials b) providing different results on repeated trial c) conduct an experiment for only one trial d) a force that acts in an opposite direction to movement 10) What is a control in an experiment? a) providing the same results on repeated trials b) the substance, object or group in an experiment that is not changed c) a condition in an experiment that is changed in order to determine the effect of that change

Forces

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？