Free Printable Physics Review for DCA#2

Worksheets

Physics Review for DCA#2

Total questions: 25

Worksheet time: 35mins

Name

Class

Date

What is the unit to MEASURE force?

Kilogram

Meter

Pascal

Newton

What is the net force?

10 N

0 N

25 N

1 N

During a demonstration of Newton’s laws of motion, a student used the setup shown in Figure 1. The student flicked the index card with a fingertip, and the coin fell straight down into a plastic cup as shown in Figure 2. Which of these best explains why the coin fell straight down into the cup instead of remaining on the index card?

The coin was at rest until the card was removed, so it tended to remain in the same location. Once the card was gone, the unbalanced force of gravity caused the coin to fall.

Moving the card applied an action force on the coin. Since the card was gone, gravity applied a reaction force on the coin.

The card had less mass than the coin, so a smaller force of gravity acted on the card. The larger force of gravity on the coin made it fall.

The acceleration of the coin falling into the cup was equal and opposite to the acceleration of the card.

What would happen to a moving object that is moving at a constant speed if more force was applied to it?

the speed of the object would decrease

the speed of the object would increase

the speed of the object would not change

At which point is potential energy greatest?

What kind of energy is in a rock at the edge of a cliff?

Potential

Kinetic

Both potential and kinetic energy

none of the above

What kind of energy is in a moving skateboard?

Potential

Kinetic

Both potential and kinetic energy

none of the above

Which is the best example that something has kinetic energy?

a. a car parked on a steep hill

b. a tennis ball rolling across the court

c. a picture hanging on the wall

d. a piece of coal before it's burned

The higher the position, the higher the ____________.

electrical energy

potential energy

elastic energy

kinetic energy

10.

45 m/s² is the...

Mass

Force

Acceleration

weight

11.

A 20 kg bike accelerates at 10 m/s². what was the force?

25 Newtons

20 Newtons

200 Newtons

10 Newtons

12.

Unit of mass

m/s 2

m/s

newtons

13.

The mass of a car is 1000 kg. How much force would be required to accelerate the car at a rate of 3 m/s²?

1000 ÷ 3

3 ÷ 1000

1000 x 3

14.

A force of 250 N is applied to an object that accelerates at a rate of 5 m/s². What is the mass of the object? To solve this problem you must do -

250 ÷ 5

5 ÷ 250

250 x 5

15.

A 5 kg block is pulled across a table by a net force of 32 N. Calculate the acceleration of the object. To solve this problem you must do -

32 ÷ 5

5 ÷ 32

32 x 5

16.

The force/s acting on the book at rest on top of the table is/are ___________.

balanced

unbalanced

not the same

cannot be determined

17.

Which of the following is an example of an unbalanced force?

18.

What is the sum of all forces acting on an object and direction?

Net Force

Balanced Force

Unbalanced Force

Applied Force

19.

What is the formula to calculate speed?

S = t/d

S = d/t

S = d x t

S = t x d

20.

Bill jogs 400 meters to Andy's house, turns around, and runs 400 meters back home. He does so in 267 seconds. What is Bill's average speed?

about 3 m/s

about 1.5 m/s

about 4 m/s

21.

A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?

10 m/s

1000 m/s

100 seconds

10 seconds

22.

A trip from Austin to Dallas takes about 3 hours going 65 mph north.

Speed

Velocity

Acceleration

23.

A car turns left while maintaining the same speed.

Speed

Velocity

Acceleration

24.

A greyhound dog can run about 40 mph.

Speed

Velocity

Acceleration

25.

A car slows down from 60 mph to 25 mph.

Speed

Velocity

Acceleration

100 %

Physics Review for DCA#2

Total questions: 25

Worksheet time: 35mins

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