Drag and drop the vocabulary word with it's matching definition. This is a force which resists all motion. This is an attractive force between any two objects due to mass. For every action, there is an equal and opposite reaction. This is the SI (metric) unit of force. A law of motion that states that an object at rest stays at rest and one in motion stays in motion. This says the acceleration of an object increases by the force applied to it, and decreases based on its mass. In the second law of motion is is Mass X Acceleration the ability to apply a change in velocity on a given object. This is what causes acceleration two forces acting opposite eachother. Options are Newton's Second Law, Newton's First Law, Force, Newton's Third Law, Gravity, Unbalanced Forces, Friction, Newton.
53 answers
Newton's First Law - A law of motion that states that an object at rest stays at rest and one in motion stays in motion.
Force - This is a force which resists all motion.
Newton's Third Law - For every action, there is an equal and opposite reaction.
Gravity - This is an attractive force between any two objects due to mass.
Unbalanced Forces - two forces acting opposite each other.
Friction - The ability to apply a change in velocity on a given object.
Newton - The SI (metric) unit of force.
The correct match for that statement is force. In the second law of motion (Newton's second law), the equation is Force = Mass X Acceleration, which represents the ability to apply a change in velocity on a given object. Friction is a separate concept related to the resistance encountered when objects move against one another.
A. A tennis player throws the tennis ball into the air for a serve and the ball falls to the ground.
B. You go down a steep hill in a sled and it feels like your stomach is going up into your throat.
C. A bird takes flight from the ground
D. Tom uses a cane to walk across the road
Newton's 1st law states that an object at rest will remain at rest, and an object in motion will stay in motion with the same speed and direction, unless acted upon by an external force. In this case, the bird is initially at rest on the ground, and it requires an external force (the flapping of its wings) to overcome its inertia and initiate flight.
Newton's third law states that for every action, there is an equal and opposite reaction. In this scenario, when you bump into your friend in the bumper cars, the force you exert on your friend results in an equal and opposite reaction force that pushes your car backward.
Newton's first law, also known as the law of inertia, states that an object at rest will remain at rest, and an object in motion will continue moving in a straight line at a constant velocity unless acted upon by an external force. In this case, the ball is already in motion, rolling straight across the floor until Bradley applies an external force by kicking it.
The scenario described in the sentence involves the concept of impulse and momentum rather than a specific law of motion. The bowling ball hurts more because it has more momentum than the baseball. Momentum is the product of an object's mass and velocity, and when the bowling ball collides with your foot, it imparts more force due to its greater mass.
Newton's second law states that force is equal to mass multiplied by acceleration (F = ma). In this case, both the bowling ball and the baseball are rolling across your foot at the same speed, which means they have the same velocity. However, the bowling ball has a significantly larger mass compared to the baseball. According to Newton's second law, the force experienced is directly proportional to the mass of an object. Therefore, the greater mass of the bowling ball results in a greater force being applied, causing more pain or discomfort when it rolls across your foot.
Newton's second law states that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass. In this scenario, as your friends apply a force to push the car, the net force exceeds the opposing forces (such as friction and air resistance), and the car starts to move. As they continue to push with a sufficient force, the car's acceleration increases, causing it to speed up.
Newton's third law states that for every action, there is an equal and opposite reaction. In this scenario, when the fireman turns on the hose and water is ejected with force in one direction, the water exerts an equal and opposite force in the opposite direction according to Newton's third law. This results in the fireman being pushed backwards as a reaction to the force exerted by the water coming out of the hose.
Newton's first law, also known as the law of inertia, states that an object at rest will remain at rest, and an object in motion will continue moving in a straight line at a constant velocity unless acted upon by an external force. In this case, the soccer ball is initially at rest, and it will stay that way until an external force, such as a player kicking it, is applied to overcome its inertia and set it in motion.
Newton's second law states that the force acting on an object is equal to its mass multiplied by its acceleration. This relationship is mathematically expressed as F = ma, where F represents the force, m represents the mass of the object, and a represents the object's acceleration. According to this law, an object's acceleration is directly proportional to the net force applied to it and inversely proportional to its mass.
A. 400 N
B. 0.5 N
C. 1000 N
D. 0.001 N
Given in the problem:
Acceleration (a) = 2 m/s²
Mass (m) = 2000 kg
To find the net force (F), we can substitute these values into the formula:
F = mass x acceleration
F = 2000 kg x 2 m/s²
F = 4000 kg·m/s²
The unit for force in the SI system is Newton (N). To convert from kg·m/s² to Newton, divide the value by 9.8 m/s² (acceleration due to gravity):
F = 4000 kg·m/s² / 9.8 m/s²
F ≈ 408.16 N
Rounded to the nearest whole number, the net force acting on the roller coaster is approximately 408 N. Therefore, the correct option is:
A. 400 N
A. 4000 N
B. 0.5 N
C. 1000 N
D. 0.001 N
Given in the problem:
Acceleration (a) = 2 m/s²
Mass (m) = 2000 kg
To find the net force (F), we can substitute these values into the formula:
F = mass x acceleration
F = 2000 kg x 2 m/s²
F = 4000 kg·m/s²
The unit for force in the SI system is Newton (N). To convert from kg·m/s² to Newton, the value remains the same.
Therefore, the net force acting on the roller coaster is 4000 N. So the correct option is:
A. 4000 N
A. they have the same speed but different velocities.
B. they have different speeds but the same velocity
C. they have different speeds and different velocities
D. they have the same speed and the same velocity
C. They have different speeds and different velocities.
Speed refers to the magnitude of the rate at which an object moves, while velocity takes into account both the speed and direction of motion. In this scenario, Matt is moving to the east while Jaime is moving to the south. Even though they have the same speed of 1.25 miles per hour, their velocities differ because they are moving in different directions. Hence, they have different speeds and different velocities.
A. Two forces of equal magnitude act on the object in opposite directions.
B. A force acting in the direction opposite the object’s motion is removed from the object.
C. A new force acts on the object, opposing the object’s motion.
D. A force acting in the direction of the object’s motion is removed from the object.
D. A force acting in the direction of the object's motion is removed from the object.
According to Newton's second law of motion, the change in momentum of an object is equal to the force acting on it multiplied by the time interval during which the force is applied. Removing a force acting in the direction of the object's motion would decrease the opposing force, resulting in a net force in the direction of motion. As a result, the object's momentum would increase.
A. Steven must throw the new ball with more force in order for it to achieve the same speed as previous throws.
B. Since force equals mass times acceleration, Steven’s throwing force must increase to throw the ball 85 mph.
C. If Steven’s throwing force is constant and the ball’s mass increases, the rate of acceleration will be less.
D. The difference in the mass is not significant and will not affect the force needed to throw the ball 85 mph.
D. The difference in the mass is not significant and will not affect the force needed to throw the ball 85 mph.
In reality, the difference in mass does have an impact on the force needed to throw the ball 85 mph. According to Newton's second law of motion (F = ma), the force required to accelerate an object is directly proportional to its mass. As the mass increases, a greater force is needed to achieve the same acceleration. In this case, since the mass of the ball has increased from 145 grams to 200 grams, Steven would indeed have to apply a greater force to achieve the same throwing speed of 85 mph. Therefore, statement D is inaccurate.