N5 Dynamics Revision Quiz

What is an example of a vector quantity?

• Time

• Mass

• Speed

• Displacement

How should two vectors be added?

• Head to head

• Tail to tail

• Tip to tail

• Randomly

What is the resultant force when using Pythagoras for vector addition with forces 30 N and 10 N?

• 20 N

• 31.6 N

• 40 N

• 25 N

What does the gradient of a slope on a velocity-time graph represent?

• Speed

• Displacement

• Acceleration

• Time

What is the value of gravitational field strength on Earth?

• 9.8 N/kg

• 10 N/kg

• 8.9 N/kg

• 9.0 N/kg

What is the formula for work done?

• Ew = Fd

• Ew = mgh

• Ew = 1/2mv^2

• Ew= mv

What does Newton's Third Law state?

• a) Every action has an equal and opposite reaction

• b) An object in motion stays in motion

• c) Force equals mass times acceleration

• d) Energy cannot be created or destroyed

What is the purpose of a light gate in acceleration experiments?

• a) To measure time

• b) To measure distance

• c) To measure mass

• d) To measure force

What happens when balanced forces act on an object?

• a) The object remains at constant speed or height

• b) The object accelerates

• c) The object changes direction

• d) The object increases in mass

What is the unit of force in the International System of Units (SI)?

• Newton

• Joule

• Watt

• Pascal