Forces revision

Which of the following can a force change?

• Speed

• Direction

• Shape

• Spin

On a force diagram the length of the force arrow shows the?

• way the thing is moving?

• Direction of the force

• Size/magnitude of the force

• The exact value of pi

On a force diagram the direction of the force arrow shows the?

• way the thing is moving?

• Direction of the force

• Size/magnitude of the force

• The exact value of pi

Which of these forces would NOT be on a flying plane?

• Weight

• Drag

• Tension

• Lift

Which of these forces would NOT be on a boat?

• Weight

• Drag

• Bouyancy

• Lift

Which of these forces would NOT be on an object being pulled along with a piece of rope?

• Weight

• Reaction

• Tension

• Lift

Newton's first law: an object will continue in a ________ line at ________ speed unless acted on by a resultant _____

• straight, resultant, force

• curved, constant, force

• straight, constant, force

• curved, constant, force

Newton's ______ law of motion: F = ma

In Newton's second law of motion what does F, m and a stand for?

• Force, mass, acceleration

• Resultant Force, mass, acceleration

In Newton's second law of motion what are the units of F, m and a?

• N, g, m/s

• N, kg, m/s