WORK AND LAWS OF MOTION

When a bicycle and a motorcycle with the same speed hit one another, which exerts more force?

• The bicycle

• The motorcycle

• There is no such thing as a force

• They exert the same amount of force

A 2000 kg jeepney is traveling at 5 m/s North Speeds up to 10 m/s in 2.5s. What is the magnitude and direction of the net force acting on the jeepney?

• 4000 N North

• 3000 N North

• 2000 N North

• 1000 N North

What law of motion does the picture on the left side does it show??

• Law of Interaction

• Law of Inertia

• Law of Acceleration

• Law of Interaction

What is the relationship between the net force and acceleration of the object if the mass is held constant?

• Inverse

• Direct

• Inverse square

• No relationship

What are the forces acting on a block of wood sliding down an inclined plane?

• Normal force

• Normal force, gravity, friction, applied force

• Normal force, gravity, and friction

• Normal force and gravity

If Jan (50 kg) and JL (30kg) are running and exerting the same amount of force, who will reach the finish line first? A. Ana B. Ani C. Neither Ana nor Ani will reach the finish line D. Both of them will reach the finish line at the same time

• Jan

• JL

• Both Jan and JL

• Neither Jan nor JL

How much work is done against gravity in lifting a 5.0 kg box through a distance of 2.0 m? A. 0.98 J B. 9.8 J C. 98 J D. 980 J

• 980 J

• 98 J

• 9.8 J

• 0.98 J

What situation showing that the object is in equilibrium?

• A jeepney which is slowing down to rest

• An ambulance accelerating to the hospital

• A medical package hanged on the elevator while the elevator is going down

• A medical doctor who is walking with constant velocity

If you double the force on an object but the distance remains the same, how much work is done on that object?

• increase four times

• Decrease a half

• Remain the same

• Doubled

Law of motion showing an action and reaction pairs of forces

• Law of Universal Gravitation

• Law of Inertia

• Law of Acceleration

• Law of Interaction