Physics 8-Cerf Reviewer

Multiple Choice

Which is not a unit of force

• Dyne

• Joules

• Newton

• Pound

Multiple Choice

What force is always directed opposite to the motion of an object?

• Weight

• Friction

• Tension

• Magnetic

Multiple Choice

If you double the mass of an object while leaving the net fore unchanged, What is the result on the acceleration

• The acceleration will be halved

• The acceleration will be quadrupled

• The acceleration will be tripled

• The acceleration will be doubled

Multiple Choice

What happens to KE of an object if work done is positive

• Increases

• Decreases

• Stays the same

• becomes constant

Multiple Choice

Which of the following is the unit of work

• Newton

• N.m

• Kg.m/s^2

• m/s

Multiple Choice

What happens to KE of an object if work done is negative

• Increases

• becomes constant

• Decreases

• equals to zero

Multiple Choice

What is called the energy possesed by a body/object because of its motion

• Potential Energy

• Molecular Energy

• Kinetic Energy

• Thermal Energy

Multiple Choice

Equivalent of 1 Joule of energy

• 1Kg.m/s

• 1 J/s

• 9.8m/s

• 1N.m

Multiple Choice

What happens to kinetic energy, when velocity is doubled

• tripled

• quadrupled

• zero

• reduced by 1/2

Multiple Choice

What does kinetic energy depends on?

• Mass and Volume

• gravity and speed

• Mass

• Mass and Velocity