What is the flat part of the bridge called?, Deck, Towers, What are the tall parts of the bridge called?, Towers, load, What helps support the bridge?, Deck, cables, What is the car on the bridge called?, Load, Beam, Which force pulls down on the bridge?, Gravity, Bridge, Which force pushes up to support the bridge?, Gravity, Support, Which force pulls a cable tight?, Tension, Gravity, What is this strong horizontal part called?, Beam, Cables, Which force squeezes a beam?, Compression, Tension, What may happen to this weak bridge?, Bend, Strong, Is this a strong or weak connection? —, Strong, Weak, Are the forces balanced or unbalanced?, Balanced, Unbalanced, What does an engineer design?, weak Bridge, Safe Bridge, What helps support the middle of the bridge?, A middle Support, cables, What can a bridge carry?, cars, airplanes, Which part of the bridge do cars and people travel on?, Deck, Towers, What type of force is shown in the picture?, Push, Pull, What do these cables help support?, The cars, The Bridge Structure, Are the forces on the cart balanced or unbalanced?, Balanced, Unbalanced, what Force the boy is using, Push, Pull, What force is being used?, Push, Pull, What force is being used?, Push, Pull, Are the forces balanced or unbalanced?, Balanced, Unbalanced, b, Are the forces balanced or unbalanced?, Balanced, Unbalanced, What kind of forces cause a change in motion?, Balanced, Unbalanced, Why doesn't the box move?, Forces are Balanced, Forces are Unbalanced, What are these called?, Towers, Cables, Which bridge part carries the load?, towers, Deck, Which part helps Push up the bridge?, Towers, Cables, Which Force Pulls down the Cars on the bridge?, Tension, Gravity, A ball is moving right and is pushed right. What happens?, The ball speeds up, The ball stops, A ball is moving right and is pushed left. What may happen?, It may slow down or stop, It always speeds up, What can a force from the side do to a ball?, Change its direction, Change its color, Which action changes the direction of a ball?, Tapping it from the side, Watching it carefully, What does an arrow show?, the direction of the force, the color of the object, What may happen when two equal forces push in opposite directions?, There may be no change in motion, The object always speeds up

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