1) Which could be an example of a balanced force? a) An asteroid moving at a constant velocity through space b) A box of dishes falling from a counter c) A rocket taking off d) A car decelerating to a stop sign 2) Which could be an example of an unbalanced force? a) A plate sitting on a dining table b) Earth orbiting the Sun c) A ball at the top of a hill that is not moving d) A baseball that has been thrown to home plate 3) Friction is a force that acts in an ___________ direction of movement. a) similar b) foward c) opposite d) backward 4) Two factors effecting the strength of the force of gravity between 2 objects are... a) mass and distance b) distance and weight c) mass and matter d) weight and mass 5) If Earth's mass was cut in half, what would happen to your weight? a) Increase because gravitational force increases b) decrease because gravitational force increases c) decrease because gravitational force decreases d) nothing, weight is not affected by gravitational force 6) Any object with mass has gravity. a) True b) False 7) An object is _____ if its position changes relative to another object. a) in motion b) at rest 8) David swam 200 meters in 20 seconds. a) speed b) velocity c) acceleration 9) Changes in our speed, direction or both are called _________. a) speed b) velocity c) acceleration 10) You ride your bike in a straight line at a constant speed of 10 km/h. a) Acceleration occurred because speed increased. b) Acceleration occurred because you changed directions. c) Acceleration did not occur because neither speed nor direction changed. 11) The birds fly 23 km/h to the south when they migrate for the winter. a) speed b) velocity c) acceleration 12) What law of physics says anything in motion stays in motion unless a force acts upon it. a) Friction b) Inertia c) Gravity d) Energy 13) On which surface will a toy car travel the furthest?  a) Ice b) Grass 14) The motion of an object will change when an unbalanced force is applied to it. a) true b) false 15) A contact force is from __________. a) far apart objects b) objects physically touching c) not touching object 16) A non-contact force is between __________. a) two objects that aren't touching b) two objects that are touching c) side by side objects 17) Which of the following is not a type of contact force? a) Frictional Force b) Gravitational Force c) Applied Force d) Normal Force 18) Which of the following is not a type of noncontact force? a) Gravitational Force b) Magnetic Force c) Electrostatic Force d) Drag Force 19) Which two of these forces act on parachutes? a) Air Resistance and Friction b) Air Resistance and Gravity c) Gravity and Inertia 20) Another name for air resistance is ________. a) inertia b) gravity c) drag 21) Air resistance pushes against falling objects and __________________. a) speeds them up b) slows them down

U1 Force & Motion & Energy- Gameshow

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