PS_Test#2
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| show | speed
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| show | velocity
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| Acceleration occurs when an object undergoes... | show 🗑
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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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| show | constant acceleration
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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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| show | three or more
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| Ignoring air resistance, an object falling toward the surface of Earth has a velocity that is... | show 🗑
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| Ignoring air resistance, an object falling near the surface of Earth has an acceleration that is... | show 🗑
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| show | they both hit at the same time
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| A ball rolling across the floor slows to a stop because... | show 🗑
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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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| If you double the mass of a cart while it is undergoing a constant unbalanced force, the acceleration will be... | show 🗑
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| Doubling the distance between the center of an orbiting satellite and the center of Earth will result in what change in the gravitational attraction of Earth for the satellite? | show 🗑
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| show | four times as great
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| A ball is swinging in a circle on a string when the string length is doubled. At the same velocity, the force on the string will be... | show 🗑
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| Suppose the mass of a moving scooter is doubled and its velocity is also doubled. The resulting momentum is... | show 🗑
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| show | four times as much
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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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| 1.) You are@rest with a grocery cart@the supermarket when you see a checkout line open&apply a force to the cart for a short time&acquire a speed. Neglecting friction, how long would you have to push with 1/2 the force to acquire the same final speed? | show 🗑
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| 2.) "...". Neglecting friction doubling the mass would have what effect on the resulting final speed if you used the same force for the same length of time? The new final speed would be... | show 🗑
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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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| show | increasing speed and constant acceleration
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| show | Both balls would have the same speed
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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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| A small sports car and a large SUV collide head on and stick together without sliding. Which vehicle had the larger momentum change? | show 🗑
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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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| show | One-ninth as much
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| show | both masses contribute equally to the force of attraction
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
ibenoit95
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