Forces Test Recap

Forces change the state of:

• Gravity

• Motion

• Energy

• Aggregation

 $What\ will\ the\ \Sigma F\ be\ on\ this\ image?$ 

Whenever we apply a force we are ________________, _______________ or ________________ the mass of an object.

• Deaccelerating

• Deforming

• Accelerating

• Breaking

• Energizing

Arnold is training at the gym. He is working his biceps and triceps with barbells. Each side of the barbell has 45 kg of mass making a total of 90kg. He will need at least 441 N to move both barbells.

• True

• False

What is gravity?

• The force acting on an object in water so it floats

• The force driving an object to move in a certain direction

• The force pulling an object towards the centre of the Earth

• The force acting on an object in contact with another object

What force is acting on the parachutes?

What effect does air resistance have on the car's movement?

• Stop moving

• Move slower

• Move faster

• Start moving

If these teams are pulling with the same amount of force, they will not move at all.

• True

• False

The sum of all forces acting on an object.

• Contact Force
• Balanced Force
• Unbalanced Force
• Net Force

What will cause an object to move?