PS_Test#2
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A straight-line distance covered during a certain amount of time describes an object's... | show 🗑
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How fast an object is moving in a particular direction is described by... | show 🗑
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show | (any of the above) speed increase, speed decrease, change in direction
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A car moving at 60km/h comes to a stop in 10s when the driver slams on the brakes. In this situation, what does 60 km/h represent? | show 🗑
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show | 0km/h
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show | continue moving at a constant speed
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In free fall, an object is seen to have a(n)... | show 🗑
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A tennis ball is hit, causing it to move upward from the racket at some angle to the horizon before it curves back to the surface in the path of a parabola. While it moves along this path... | show 🗑
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A quantity of 5m/s^2 is a measure of... | show 🗑
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An automobile has how many different devices that can cause it to undergo acceleration? | show 🗑
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show | increasing
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show | constant
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show | they both hit at the same time
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show | there is a net force acting on it
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show | average speed is for a total distance over a total time of trip
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Does any change in the motion of an object result in an acceleration? | show 🗑
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show | acceleration
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Considering the forces on the system of you and a bicycle as you pedal the bike at a constant velocity in a horizontal straight line... | show 🗑
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show | the tendency of a moving or stationary object to resists any change in its state of motion
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show | stay in one place over the surface of Earth as the shuttle bus moves from under you
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Mass is measured in kilograms (kg), which is a measure of... | show 🗑
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show | N (Newtons)
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Newton's third law of motion states that forces occur in matched pairs that act in opposite directions between two different bodies. This happens... | show 🗑
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If you double the unbalanced force on an object of a given mass, the acceleration will be... | show 🗑
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show | one-half as much
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show | One-fourth as much
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show | four times as great
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show | one-half as much
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show | quadrupled
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Two identical moons are moving in identical circular paths, but one moon is moving twice as fast as the other. Compared to the slower moon, the centripetal force required to keep the faster moon on the path is... | show 🗑
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show | Both undergo the same change but in opposite directions
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Newton's law of gravitation tells us that... | show 🗑
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An astronaut living on a space station that is orbiting Earth will... | show 🗑
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A measure of the force of gravity acting on an object is called... | show 🗑
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show | Twice as long
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show | one-half
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show | balanced, with a net force of zero
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You are outside a store,moving a loaded grocery cart down the street on a very steep hill.You are able to pull back on the handle&keep the cart moving down the street in a straight line & at a constant speed. The forces on the cart are... | show 🗑
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Neglecting air resistance, a ball in free fall near Earth's surface will have... | show 🗑
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From a bridge, a ball is thrown straight up at the same time a ball is thrown straight down with the same initial speed. Neglecting air resistance, which ball will have a greater speed when it hits the ground? | show 🗑
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show | 9.8 m/s^2
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show | hits the apple
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show | The action-reaction forces between the car and trailer are equal, but the fore between the ground and car pushes them forward.
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show | It would be equal for both
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Again consider the small sports car and large SUV that collided head on and stuck together without sliding. Which vehicle must have experienced the larger deceleration during the collision? | show 🗑
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An orbiting satellite is moved from 10,000 to 30,000 km from Earth. This will result in what change in the gravitational attracting between Earth and the satellite? | show 🗑
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Newton's law of gravitation considers the product of two masses because... | show 🗑
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Created by:
ibenoit95
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