Force ,Work ,Power & Energy Class 10th Physics

A push or a pull applied to an object

• Work
• Force
• Newtons
• Joules

A type of simple machine also known as an inclined plane

• Push or Pull
• A drag
• Lever
• Ramp

A horse gallops around a circular arena.  The centripetal force on the horse is ___.

• directed outward
• tension
• directed toward the center of the arena
• 9.8 N

If you double the mass of m₂ and distance between them, by what factor will the gravitational force change ?

• F/2
• 2F
• 4F
• F/4

Inertia is....

• for every action, there is an equal and opposite reaction
• larger objects take more force to move 
• an object in motion tends to stay in motion unless acted on by an opposite force
• a push that acts in the opposite direction and it slows down.

A cup of coffee sitting on a table describes which Law of Motion?

• Newton's 1st Law (Inertia)

• Newton's 2nd Law (F=ma)

• Newton's 3rd Law (Action/Reaction)

A wheeled cart is moving to the right at a constant speed.  Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?

• Balanced Forces, Constant Speed
• Balanced Forces, Acceleration
• Unbalanced Forces, Constant Speed
• Unbalanced Forces, Acceleration

What is 'drag' another name for?

• dressing up
• air resistance
• friction
• weight

In the free-body diagram, which of the following is the gravitational force acting on the balloon?

• 5120 N

• 950 N

• 1520 N

• 4050 N

The biker travels at constant velocity. All of the following are true except-

• he has a net force acting on him.

• the normal force is equal to his weight.

• the force of friction acts opposite the direction of his motion.

• the force of friction is equal to the forward force he applies.